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1 | /* |
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2 | * libev event processing core, watcher management |
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3 | * |
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4 | * Copyright (c) 2007 Marc Alexander Lehmann <libev@schmorp.de> |
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5 | * All rights reserved. |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions are |
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9 | * met: |
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10 | * |
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11 | * * Redistributions of source code must retain the above copyright |
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12 | * notice, this list of conditions and the following disclaimer. |
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13 | * |
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14 | * * Redistributions in binary form must reproduce the above |
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15 | * copyright notice, this list of conditions and the following |
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16 | * disclaimer in the documentation and/or other materials provided |
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17 | * with the distribution. |
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18 | * |
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19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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20 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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21 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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22 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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23 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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24 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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25 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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26 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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27 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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28 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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29 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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30 | */ |
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31 | |
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32 | #ifdef __cplusplus |
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33 | extern "C" { |
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34 | #endif |
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35 | |
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36 | #ifndef EV_STANDALONE |
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37 | # ifdef EV_CONFIG_H |
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38 | # include EV_CONFIG_H |
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39 | # else |
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40 | # include "config.h" |
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41 | # endif |
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42 | |
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43 | # if HAVE_CLOCK_GETTIME |
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44 | # ifndef EV_USE_MONOTONIC |
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45 | # define EV_USE_MONOTONIC 1 |
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46 | # endif |
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47 | # ifndef EV_USE_REALTIME |
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48 | # define EV_USE_REALTIME 1 |
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49 | # endif |
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50 | # else |
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51 | # ifndef EV_USE_MONOTONIC |
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52 | # define EV_USE_MONOTONIC 0 |
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53 | # endif |
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54 | # ifndef EV_USE_REALTIME |
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55 | # define EV_USE_REALTIME 0 |
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56 | # endif |
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57 | # endif |
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58 | |
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59 | # ifndef EV_USE_SELECT |
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60 | # if HAVE_SELECT && HAVE_SYS_SELECT_H |
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61 | # define EV_USE_SELECT 1 |
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62 | # else |
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63 | # define EV_USE_SELECT 0 |
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64 | # endif |
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65 | # endif |
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66 | |
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67 | # ifndef EV_USE_POLL |
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68 | # if HAVE_POLL && HAVE_POLL_H |
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69 | # define EV_USE_POLL 1 |
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70 | # else |
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71 | # define EV_USE_POLL 0 |
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72 | # endif |
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73 | # endif |
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74 | |
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75 | # ifndef EV_USE_EPOLL |
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76 | # if HAVE_EPOLL_CTL && HAVE_SYS_EPOLL_H |
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77 | # define EV_USE_EPOLL 1 |
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78 | # else |
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79 | # define EV_USE_EPOLL 0 |
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80 | # endif |
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81 | # endif |
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82 | |
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83 | # ifndef EV_USE_KQUEUE |
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84 | # if HAVE_KQUEUE && HAVE_SYS_EVENT_H && HAVE_SYS_QUEUE_H |
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85 | # define EV_USE_KQUEUE 1 |
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86 | # else |
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87 | # define EV_USE_KQUEUE 0 |
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88 | # endif |
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89 | # endif |
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90 | |
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91 | # ifndef EV_USE_PORT |
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92 | # if HAVE_PORT_H && HAVE_PORT_CREATE |
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93 | # define EV_USE_PORT 1 |
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94 | # else |
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95 | # define EV_USE_PORT 0 |
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96 | # endif |
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97 | # endif |
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98 | |
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99 | # ifndef EV_USE_INOTIFY |
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100 | # if HAVE_INOTIFY_INIT && HAVE_SYS_INOTIFY_H |
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101 | # define EV_USE_INOTIFY 1 |
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102 | # else |
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103 | # define EV_USE_INOTIFY 0 |
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104 | # endif |
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105 | # endif |
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106 | |
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107 | #endif |
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108 | |
1 | #include <math.h> |
109 | #include <math.h> |
2 | #include <stdlib.h> |
110 | #include <stdlib.h> |
3 | #include <unistd.h> |
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4 | #include <fcntl.h> |
111 | #include <fcntl.h> |
5 | #include <signal.h> |
112 | #include <stddef.h> |
6 | |
113 | |
7 | #include <stdio.h> |
114 | #include <stdio.h> |
8 | |
115 | |
9 | #include <assert.h> |
116 | #include <assert.h> |
10 | #include <errno.h> |
117 | #include <errno.h> |
11 | #include <sys/time.h> |
118 | #include <sys/types.h> |
12 | #include <time.h> |
119 | #include <time.h> |
13 | |
120 | |
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121 | #include <signal.h> |
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122 | |
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123 | #ifdef EV_H |
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124 | # include EV_H |
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125 | #else |
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126 | # include "ev.h" |
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127 | #endif |
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128 | |
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129 | #ifndef _WIN32 |
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130 | # include <sys/time.h> |
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131 | # include <sys/wait.h> |
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132 | # include <unistd.h> |
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133 | #else |
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134 | # define WIN32_LEAN_AND_MEAN |
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135 | # include <windows.h> |
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136 | # ifndef EV_SELECT_IS_WINSOCKET |
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137 | # define EV_SELECT_IS_WINSOCKET 1 |
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138 | # endif |
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139 | #endif |
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140 | |
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141 | /**/ |
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142 | |
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143 | #ifndef EV_USE_MONOTONIC |
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144 | # define EV_USE_MONOTONIC 0 |
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145 | #endif |
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146 | |
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147 | #ifndef EV_USE_REALTIME |
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148 | # define EV_USE_REALTIME 0 |
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149 | #endif |
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150 | |
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151 | #ifndef EV_USE_SELECT |
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152 | # define EV_USE_SELECT 1 |
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153 | #endif |
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154 | |
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155 | #ifndef EV_USE_POLL |
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156 | # ifdef _WIN32 |
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157 | # define EV_USE_POLL 0 |
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158 | # else |
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159 | # define EV_USE_POLL 1 |
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160 | # endif |
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161 | #endif |
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162 | |
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163 | #ifndef EV_USE_EPOLL |
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164 | # define EV_USE_EPOLL 0 |
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165 | #endif |
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166 | |
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167 | #ifndef EV_USE_KQUEUE |
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168 | # define EV_USE_KQUEUE 0 |
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169 | #endif |
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170 | |
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171 | #ifndef EV_USE_PORT |
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172 | # define EV_USE_PORT 0 |
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173 | #endif |
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174 | |
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175 | #ifndef EV_USE_INOTIFY |
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176 | # define EV_USE_INOTIFY 0 |
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177 | #endif |
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178 | |
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179 | #ifndef EV_PID_HASHSIZE |
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180 | # if EV_MINIMAL |
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181 | # define EV_PID_HASHSIZE 1 |
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182 | # else |
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183 | # define EV_PID_HASHSIZE 16 |
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184 | # endif |
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185 | #endif |
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186 | |
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187 | #ifndef EV_INOTIFY_HASHSIZE |
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188 | # if EV_MINIMAL |
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189 | # define EV_INOTIFY_HASHSIZE 1 |
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190 | # else |
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191 | # define EV_INOTIFY_HASHSIZE 16 |
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192 | # endif |
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193 | #endif |
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194 | |
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195 | /**/ |
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196 | |
14 | #ifdef CLOCK_MONOTONIC |
197 | #ifndef CLOCK_MONOTONIC |
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198 | # undef EV_USE_MONOTONIC |
15 | # define HAVE_MONOTONIC 1 |
199 | # define EV_USE_MONOTONIC 0 |
16 | #endif |
200 | #endif |
17 | |
201 | |
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202 | #ifndef CLOCK_REALTIME |
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203 | # undef EV_USE_REALTIME |
18 | #define HAVE_REALTIME 1 |
204 | # define EV_USE_REALTIME 0 |
19 | #define HAVE_EPOLL 1 |
205 | #endif |
20 | #define HAVE_SELECT 1 |
206 | |
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207 | #if EV_SELECT_IS_WINSOCKET |
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208 | # include <winsock.h> |
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209 | #endif |
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210 | |
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211 | #if !EV_STAT_ENABLE |
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212 | # define EV_USE_INOTIFY 0 |
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213 | #endif |
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214 | |
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215 | #if EV_USE_INOTIFY |
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216 | # include <sys/inotify.h> |
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217 | #endif |
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218 | |
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219 | /**/ |
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220 | |
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221 | /* |
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222 | * This is used to avoid floating point rounding problems. |
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223 | * It is added to ev_rt_now when scheduling periodics |
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224 | * to ensure progress, time-wise, even when rounding |
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225 | * errors are against us. |
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226 | * This value is good at least till the year 4000. |
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227 | * Better solutions welcome. |
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228 | */ |
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229 | #define TIME_EPSILON 0.0001220703125 /* 1/8192 */ |
21 | |
230 | |
22 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
231 | #define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ |
23 | #define MAX_BLOCKTIME 60. |
232 | #define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ |
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233 | /*#define CLEANUP_INTERVAL (MAX_BLOCKTIME * 5.) /* how often to try to free memory and re-check fds, TODO */ |
24 | |
234 | |
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235 | #if __GNUC__ >= 3 |
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236 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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237 | # define noinline __attribute__ ((noinline)) |
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238 | #else |
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239 | # define expect(expr,value) (expr) |
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240 | # define noinline |
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241 | # if __STDC_VERSION__ < 199901L |
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242 | # define inline |
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243 | # endif |
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244 | #endif |
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245 | |
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246 | #define expect_false(expr) expect ((expr) != 0, 0) |
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247 | #define expect_true(expr) expect ((expr) != 0, 1) |
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248 | #define inline_size static inline |
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249 | |
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250 | #if EV_MINIMAL |
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251 | # define inline_speed static noinline |
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252 | #else |
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253 | # define inline_speed static inline |
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254 | #endif |
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255 | |
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256 | #define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) |
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257 | #define ABSPRI(w) (((W)w)->priority - EV_MINPRI) |
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258 | |
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259 | #define EMPTY /* required for microsofts broken pseudo-c compiler */ |
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260 | #define EMPTY2(a,b) /* used to suppress some warnings */ |
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261 | |
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262 | typedef ev_watcher *W; |
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263 | typedef ev_watcher_list *WL; |
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264 | typedef ev_watcher_time *WT; |
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265 | |
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266 | static int have_monotonic; /* did clock_gettime (CLOCK_MONOTONIC) work? */ |
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267 | |
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268 | #ifdef _WIN32 |
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269 | # include "ev_win32.c" |
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270 | #endif |
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271 | |
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272 | /*****************************************************************************/ |
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273 | |
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274 | static void (*syserr_cb)(const char *msg); |
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275 | |
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276 | void |
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277 | ev_set_syserr_cb (void (*cb)(const char *msg)) |
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278 | { |
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279 | syserr_cb = cb; |
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280 | } |
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281 | |
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282 | static void noinline |
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283 | syserr (const char *msg) |
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284 | { |
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285 | if (!msg) |
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286 | msg = "(libev) system error"; |
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287 | |
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288 | if (syserr_cb) |
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289 | syserr_cb (msg); |
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290 | else |
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291 | { |
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292 | perror (msg); |
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293 | abort (); |
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294 | } |
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295 | } |
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296 | |
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297 | static void *(*alloc)(void *ptr, long size); |
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298 | |
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299 | void |
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300 | ev_set_allocator (void *(*cb)(void *ptr, long size)) |
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301 | { |
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302 | alloc = cb; |
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303 | } |
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304 | |
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305 | inline_speed void * |
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306 | ev_realloc (void *ptr, long size) |
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307 | { |
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308 | ptr = alloc ? alloc (ptr, size) : realloc (ptr, size); |
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309 | |
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310 | if (!ptr && size) |
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311 | { |
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312 | fprintf (stderr, "libev: cannot allocate %ld bytes, aborting.", size); |
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313 | abort (); |
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314 | } |
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315 | |
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316 | return ptr; |
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317 | } |
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318 | |
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319 | #define ev_malloc(size) ev_realloc (0, (size)) |
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320 | #define ev_free(ptr) ev_realloc ((ptr), 0) |
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321 | |
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322 | /*****************************************************************************/ |
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323 | |
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324 | typedef struct |
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325 | { |
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326 | WL head; |
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327 | unsigned char events; |
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328 | unsigned char reify; |
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329 | #if EV_SELECT_IS_WINSOCKET |
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330 | SOCKET handle; |
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331 | #endif |
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332 | } ANFD; |
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333 | |
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334 | typedef struct |
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335 | { |
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336 | W w; |
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337 | int events; |
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338 | } ANPENDING; |
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339 | |
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340 | #if EV_USE_INOTIFY |
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341 | typedef struct |
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342 | { |
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343 | WL head; |
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344 | } ANFS; |
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345 | #endif |
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346 | |
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347 | #if EV_MULTIPLICITY |
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348 | |
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349 | struct ev_loop |
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350 | { |
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351 | ev_tstamp ev_rt_now; |
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352 | #define ev_rt_now ((loop)->ev_rt_now) |
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353 | #define VAR(name,decl) decl; |
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354 | #include "ev_vars.h" |
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355 | #undef VAR |
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356 | }; |
25 | #include "ev.h" |
357 | #include "ev_wrap.h" |
26 | |
358 | |
27 | struct ev_watcher { |
359 | static struct ev_loop default_loop_struct; |
28 | EV_WATCHER (ev_watcher); |
360 | struct ev_loop *ev_default_loop_ptr; |
29 | }; |
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30 | |
361 | |
31 | struct ev_watcher_list { |
362 | #else |
32 | EV_WATCHER_LIST (ev_watcher_list); |
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33 | }; |
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34 | |
363 | |
35 | static ev_tstamp now, diff; /* monotonic clock */ |
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36 | ev_tstamp ev_now; |
364 | ev_tstamp ev_rt_now; |
37 | int ev_method; |
365 | #define VAR(name,decl) static decl; |
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366 | #include "ev_vars.h" |
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367 | #undef VAR |
38 | |
368 | |
39 | static int have_monotonic; /* runtime */ |
369 | static int ev_default_loop_ptr; |
40 | |
370 | |
41 | static ev_tstamp method_fudge; /* stupid epoll-returns-early bug */ |
371 | #endif |
42 | static void (*method_modify)(int fd, int oev, int nev); |
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43 | static void (*method_poll)(ev_tstamp timeout); |
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44 | |
372 | |
45 | /*****************************************************************************/ |
373 | /*****************************************************************************/ |
46 | |
374 | |
47 | ev_tstamp |
375 | ev_tstamp |
48 | ev_time (void) |
376 | ev_time (void) |
49 | { |
377 | { |
50 | #if HAVE_REALTIME |
378 | #if EV_USE_REALTIME |
51 | struct timespec ts; |
379 | struct timespec ts; |
52 | clock_gettime (CLOCK_REALTIME, &ts); |
380 | clock_gettime (CLOCK_REALTIME, &ts); |
53 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
381 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
54 | #else |
382 | #else |
55 | struct timeval tv; |
383 | struct timeval tv; |
56 | gettimeofday (&tv, 0); |
384 | gettimeofday (&tv, 0); |
57 | return tv.tv_sec + tv.tv_usec * 1e-6; |
385 | return tv.tv_sec + tv.tv_usec * 1e-6; |
58 | #endif |
386 | #endif |
59 | } |
387 | } |
60 | |
388 | |
61 | static ev_tstamp |
389 | ev_tstamp inline_size |
62 | get_clock (void) |
390 | get_clock (void) |
63 | { |
391 | { |
64 | #if HAVE_MONOTONIC |
392 | #if EV_USE_MONOTONIC |
65 | if (have_monotonic) |
393 | if (expect_true (have_monotonic)) |
66 | { |
394 | { |
67 | struct timespec ts; |
395 | struct timespec ts; |
68 | clock_gettime (CLOCK_MONOTONIC, &ts); |
396 | clock_gettime (CLOCK_MONOTONIC, &ts); |
69 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
397 | return ts.tv_sec + ts.tv_nsec * 1e-9; |
70 | } |
398 | } |
71 | #endif |
399 | #endif |
72 | |
400 | |
73 | return ev_time (); |
401 | return ev_time (); |
74 | } |
402 | } |
75 | |
403 | |
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404 | #if EV_MULTIPLICITY |
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405 | ev_tstamp |
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406 | ev_now (EV_P) |
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407 | { |
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408 | return ev_rt_now; |
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409 | } |
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410 | #endif |
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411 | |
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412 | int inline_size |
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413 | array_nextsize (int elem, int cur, int cnt) |
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414 | { |
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415 | int ncur = cur + 1; |
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416 | |
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417 | do |
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418 | ncur <<= 1; |
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419 | while (cnt > ncur); |
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420 | |
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421 | /* if size > 4096, round to 4096 - 4 * longs to accomodate malloc overhead */ |
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422 | if (elem * ncur > 4096) |
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423 | { |
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424 | ncur *= elem; |
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425 | ncur = (ncur + elem + 4095 + sizeof (void *) * 4) & ~4095; |
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426 | ncur = ncur - sizeof (void *) * 4; |
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427 | ncur /= elem; |
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428 | } |
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429 | |
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430 | return ncur; |
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431 | } |
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432 | |
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433 | static noinline void * |
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434 | array_realloc (int elem, void *base, int *cur, int cnt) |
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435 | { |
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436 | *cur = array_nextsize (elem, *cur, cnt); |
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437 | return ev_realloc (base, elem * *cur); |
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438 | } |
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439 | |
76 | #define array_needsize(base,cur,cnt,init) \ |
440 | #define array_needsize(type,base,cur,cnt,init) \ |
77 | if ((cnt) > cur) \ |
441 | if (expect_false ((cnt) > (cur))) \ |
78 | { \ |
442 | { \ |
79 | int newcnt = cur ? cur << 1 : 16; \ |
443 | int ocur_ = (cur); \ |
80 | fprintf (stderr, "resize(" # base ") from %d to %d\n", cur, newcnt);\ |
444 | (base) = (type *)array_realloc \ |
81 | base = realloc (base, sizeof (*base) * (newcnt)); \ |
445 | (sizeof (type), (base), &(cur), (cnt)); \ |
82 | init (base + cur, newcnt - cur); \ |
446 | init ((base) + (ocur_), (cur) - ocur_); \ |
83 | cur = newcnt; \ |
|
|
84 | } |
447 | } |
|
|
448 | |
|
|
449 | #if 0 |
|
|
450 | #define array_slim(type,stem) \ |
|
|
451 | if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ |
|
|
452 | { \ |
|
|
453 | stem ## max = array_roundsize (stem ## cnt >> 1); \ |
|
|
454 | base = (type *)ev_realloc (base, sizeof (type) * (stem ## max));\ |
|
|
455 | fprintf (stderr, "slimmed down " # stem " to %d\n", stem ## max);/*D*/\ |
|
|
456 | } |
|
|
457 | #endif |
|
|
458 | |
|
|
459 | #define array_free(stem, idx) \ |
|
|
460 | ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; |
85 | |
461 | |
86 | /*****************************************************************************/ |
462 | /*****************************************************************************/ |
87 | |
463 | |
|
|
464 | void noinline |
|
|
465 | ev_feed_event (EV_P_ void *w, int revents) |
|
|
466 | { |
|
|
467 | W w_ = (W)w; |
|
|
468 | int pri = ABSPRI (w_); |
|
|
469 | |
|
|
470 | if (expect_false (w_->pending)) |
|
|
471 | pendings [pri][w_->pending - 1].events |= revents; |
|
|
472 | else |
|
|
473 | { |
|
|
474 | w_->pending = ++pendingcnt [pri]; |
|
|
475 | array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); |
|
|
476 | pendings [pri][w_->pending - 1].w = w_; |
|
|
477 | pendings [pri][w_->pending - 1].events = revents; |
|
|
478 | } |
|
|
479 | } |
|
|
480 | |
|
|
481 | void inline_speed |
|
|
482 | queue_events (EV_P_ W *events, int eventcnt, int type) |
|
|
483 | { |
|
|
484 | int i; |
|
|
485 | |
|
|
486 | for (i = 0; i < eventcnt; ++i) |
|
|
487 | ev_feed_event (EV_A_ events [i], type); |
|
|
488 | } |
|
|
489 | |
|
|
490 | /*****************************************************************************/ |
|
|
491 | |
|
|
492 | void inline_size |
|
|
493 | anfds_init (ANFD *base, int count) |
|
|
494 | { |
|
|
495 | while (count--) |
|
|
496 | { |
|
|
497 | base->head = 0; |
|
|
498 | base->events = EV_NONE; |
|
|
499 | base->reify = 0; |
|
|
500 | |
|
|
501 | ++base; |
|
|
502 | } |
|
|
503 | } |
|
|
504 | |
|
|
505 | void inline_speed |
|
|
506 | fd_event (EV_P_ int fd, int revents) |
|
|
507 | { |
|
|
508 | ANFD *anfd = anfds + fd; |
|
|
509 | ev_io *w; |
|
|
510 | |
|
|
511 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
512 | { |
|
|
513 | int ev = w->events & revents; |
|
|
514 | |
|
|
515 | if (ev) |
|
|
516 | ev_feed_event (EV_A_ (W)w, ev); |
|
|
517 | } |
|
|
518 | } |
|
|
519 | |
|
|
520 | void |
|
|
521 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
522 | { |
|
|
523 | if (fd >= 0 && fd < anfdmax) |
|
|
524 | fd_event (EV_A_ fd, revents); |
|
|
525 | } |
|
|
526 | |
|
|
527 | void inline_size |
|
|
528 | fd_reify (EV_P) |
|
|
529 | { |
|
|
530 | int i; |
|
|
531 | |
|
|
532 | for (i = 0; i < fdchangecnt; ++i) |
|
|
533 | { |
|
|
534 | int fd = fdchanges [i]; |
|
|
535 | ANFD *anfd = anfds + fd; |
|
|
536 | ev_io *w; |
|
|
537 | |
|
|
538 | int events = 0; |
|
|
539 | |
|
|
540 | for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) |
|
|
541 | events |= w->events; |
|
|
542 | |
|
|
543 | #if EV_SELECT_IS_WINSOCKET |
|
|
544 | if (events) |
|
|
545 | { |
|
|
546 | unsigned long argp; |
|
|
547 | anfd->handle = _get_osfhandle (fd); |
|
|
548 | assert (("libev only supports socket fds in this configuration", ioctlsocket (anfd->handle, FIONREAD, &argp) == 0)); |
|
|
549 | } |
|
|
550 | #endif |
|
|
551 | |
|
|
552 | anfd->reify = 0; |
|
|
553 | |
|
|
554 | backend_modify (EV_A_ fd, anfd->events, events); |
|
|
555 | anfd->events = events; |
|
|
556 | } |
|
|
557 | |
|
|
558 | fdchangecnt = 0; |
|
|
559 | } |
|
|
560 | |
|
|
561 | void inline_size |
|
|
562 | fd_change (EV_P_ int fd) |
|
|
563 | { |
|
|
564 | if (expect_false (anfds [fd].reify)) |
|
|
565 | return; |
|
|
566 | |
|
|
567 | anfds [fd].reify = 1; |
|
|
568 | |
|
|
569 | ++fdchangecnt; |
|
|
570 | array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); |
|
|
571 | fdchanges [fdchangecnt - 1] = fd; |
|
|
572 | } |
|
|
573 | |
|
|
574 | void inline_speed |
|
|
575 | fd_kill (EV_P_ int fd) |
|
|
576 | { |
|
|
577 | ev_io *w; |
|
|
578 | |
|
|
579 | while ((w = (ev_io *)anfds [fd].head)) |
|
|
580 | { |
|
|
581 | ev_io_stop (EV_A_ w); |
|
|
582 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
|
|
583 | } |
|
|
584 | } |
|
|
585 | |
|
|
586 | int inline_size |
|
|
587 | fd_valid (int fd) |
|
|
588 | { |
|
|
589 | #ifdef _WIN32 |
|
|
590 | return _get_osfhandle (fd) != -1; |
|
|
591 | #else |
|
|
592 | return fcntl (fd, F_GETFD) != -1; |
|
|
593 | #endif |
|
|
594 | } |
|
|
595 | |
|
|
596 | /* called on EBADF to verify fds */ |
|
|
597 | static void noinline |
|
|
598 | fd_ebadf (EV_P) |
|
|
599 | { |
|
|
600 | int fd; |
|
|
601 | |
|
|
602 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
603 | if (anfds [fd].events) |
|
|
604 | if (!fd_valid (fd) == -1 && errno == EBADF) |
|
|
605 | fd_kill (EV_A_ fd); |
|
|
606 | } |
|
|
607 | |
|
|
608 | /* called on ENOMEM in select/poll to kill some fds and retry */ |
|
|
609 | static void noinline |
|
|
610 | fd_enomem (EV_P) |
|
|
611 | { |
|
|
612 | int fd; |
|
|
613 | |
|
|
614 | for (fd = anfdmax; fd--; ) |
|
|
615 | if (anfds [fd].events) |
|
|
616 | { |
|
|
617 | fd_kill (EV_A_ fd); |
|
|
618 | return; |
|
|
619 | } |
|
|
620 | } |
|
|
621 | |
|
|
622 | /* usually called after fork if backend needs to re-arm all fds from scratch */ |
|
|
623 | static void noinline |
|
|
624 | fd_rearm_all (EV_P) |
|
|
625 | { |
|
|
626 | int fd; |
|
|
627 | |
|
|
628 | for (fd = 0; fd < anfdmax; ++fd) |
|
|
629 | if (anfds [fd].events) |
|
|
630 | { |
|
|
631 | anfds [fd].events = 0; |
|
|
632 | fd_change (EV_A_ fd); |
|
|
633 | } |
|
|
634 | } |
|
|
635 | |
|
|
636 | /*****************************************************************************/ |
|
|
637 | |
|
|
638 | void inline_speed |
|
|
639 | upheap (WT *heap, int k) |
|
|
640 | { |
|
|
641 | WT w = heap [k]; |
|
|
642 | |
|
|
643 | while (k) |
|
|
644 | { |
|
|
645 | int p = (k - 1) >> 1; |
|
|
646 | |
|
|
647 | if (heap [p]->at <= w->at) |
|
|
648 | break; |
|
|
649 | |
|
|
650 | heap [k] = heap [p]; |
|
|
651 | ((W)heap [k])->active = k + 1; |
|
|
652 | k = p; |
|
|
653 | } |
|
|
654 | |
|
|
655 | heap [k] = w; |
|
|
656 | ((W)heap [k])->active = k + 1; |
|
|
657 | |
|
|
658 | } |
|
|
659 | |
|
|
660 | void inline_speed |
|
|
661 | downheap (WT *heap, int N, int k) |
|
|
662 | { |
|
|
663 | WT w = heap [k]; |
|
|
664 | |
|
|
665 | for (;;) |
|
|
666 | { |
|
|
667 | int c = (k << 1) + 1; |
|
|
668 | |
|
|
669 | if (c >= N) |
|
|
670 | break; |
|
|
671 | |
|
|
672 | c += c + 1 < N && heap [c]->at > heap [c + 1]->at |
|
|
673 | ? 1 : 0; |
|
|
674 | |
|
|
675 | if (w->at <= heap [c]->at) |
|
|
676 | break; |
|
|
677 | |
|
|
678 | heap [k] = heap [c]; |
|
|
679 | ((W)heap [k])->active = k + 1; |
|
|
680 | |
|
|
681 | k = c; |
|
|
682 | } |
|
|
683 | |
|
|
684 | heap [k] = w; |
|
|
685 | ((W)heap [k])->active = k + 1; |
|
|
686 | } |
|
|
687 | |
|
|
688 | void inline_size |
|
|
689 | adjustheap (WT *heap, int N, int k) |
|
|
690 | { |
|
|
691 | upheap (heap, k); |
|
|
692 | downheap (heap, N, k); |
|
|
693 | } |
|
|
694 | |
|
|
695 | /*****************************************************************************/ |
|
|
696 | |
88 | typedef struct |
697 | typedef struct |
89 | { |
698 | { |
90 | struct ev_io *head; |
699 | WL head; |
91 | unsigned char wev, rev; /* want, received event set */ |
|
|
92 | } ANFD; |
|
|
93 | |
|
|
94 | static ANFD *anfds; |
|
|
95 | static int anfdmax; |
|
|
96 | |
|
|
97 | static int *fdchanges; |
|
|
98 | static int fdchangemax, fdchangecnt; |
|
|
99 | |
|
|
100 | static void |
|
|
101 | anfds_init (ANFD *base, int count) |
|
|
102 | { |
|
|
103 | while (count--) |
|
|
104 | { |
|
|
105 | base->head = 0; |
|
|
106 | base->wev = base->rev = EV_NONE; |
|
|
107 | ++base; |
|
|
108 | } |
|
|
109 | } |
|
|
110 | |
|
|
111 | typedef struct |
|
|
112 | { |
|
|
113 | struct ev_watcher *w; |
|
|
114 | int events; |
|
|
115 | } ANPENDING; |
|
|
116 | |
|
|
117 | static ANPENDING *pendings; |
|
|
118 | static int pendingmax, pendingcnt; |
|
|
119 | |
|
|
120 | static void |
|
|
121 | event (struct ev_watcher *w, int events) |
|
|
122 | { |
|
|
123 | w->pending = ++pendingcnt; |
|
|
124 | array_needsize (pendings, pendingmax, pendingcnt, ); |
|
|
125 | pendings [pendingcnt - 1].w = w; |
|
|
126 | pendings [pendingcnt - 1].events = events; |
|
|
127 | } |
|
|
128 | |
|
|
129 | static void |
|
|
130 | fd_event (int fd, int events) |
|
|
131 | { |
|
|
132 | ANFD *anfd = anfds + fd; |
|
|
133 | struct ev_io *w; |
|
|
134 | |
|
|
135 | for (w = anfd->head; w; w = w->next) |
|
|
136 | { |
|
|
137 | int ev = w->events & events; |
|
|
138 | |
|
|
139 | if (ev) |
|
|
140 | event ((struct ev_watcher *)w, ev); |
|
|
141 | } |
|
|
142 | } |
|
|
143 | |
|
|
144 | /*****************************************************************************/ |
|
|
145 | |
|
|
146 | static struct ev_timer **atimers; |
|
|
147 | static int atimermax, atimercnt; |
|
|
148 | |
|
|
149 | static struct ev_timer **rtimers; |
|
|
150 | static int rtimermax, rtimercnt; |
|
|
151 | |
|
|
152 | static void |
|
|
153 | upheap (struct ev_timer **timers, int k) |
|
|
154 | { |
|
|
155 | struct ev_timer *w = timers [k]; |
|
|
156 | |
|
|
157 | while (k && timers [k >> 1]->at > w->at) |
|
|
158 | { |
|
|
159 | timers [k] = timers [k >> 1]; |
|
|
160 | timers [k]->active = k + 1; |
|
|
161 | k >>= 1; |
|
|
162 | } |
|
|
163 | |
|
|
164 | timers [k] = w; |
|
|
165 | timers [k]->active = k + 1; |
|
|
166 | |
|
|
167 | } |
|
|
168 | |
|
|
169 | static void |
|
|
170 | downheap (struct ev_timer **timers, int N, int k) |
|
|
171 | { |
|
|
172 | struct ev_timer *w = timers [k]; |
|
|
173 | |
|
|
174 | while (k < (N >> 1)) |
|
|
175 | { |
|
|
176 | int j = k << 1; |
|
|
177 | |
|
|
178 | if (j + 1 < N && timers [j]->at > timers [j + 1]->at) |
|
|
179 | ++j; |
|
|
180 | |
|
|
181 | if (w->at <= timers [j]->at) |
|
|
182 | break; |
|
|
183 | |
|
|
184 | timers [k] = timers [j]; |
|
|
185 | timers [k]->active = k + 1; |
|
|
186 | k = j; |
|
|
187 | } |
|
|
188 | |
|
|
189 | timers [k] = w; |
|
|
190 | timers [k]->active = k + 1; |
|
|
191 | } |
|
|
192 | |
|
|
193 | /*****************************************************************************/ |
|
|
194 | |
|
|
195 | typedef struct |
|
|
196 | { |
|
|
197 | struct ev_signal *head; |
|
|
198 | sig_atomic_t gotsig; |
700 | sig_atomic_t volatile gotsig; |
199 | } ANSIG; |
701 | } ANSIG; |
200 | |
702 | |
201 | static ANSIG *signals; |
703 | static ANSIG *signals; |
202 | static int signalmax; |
704 | static int signalmax; |
203 | |
705 | |
204 | static int sigpipe [2]; |
706 | static int sigpipe [2]; |
205 | static sig_atomic_t gotsig; |
707 | static sig_atomic_t volatile gotsig; |
206 | static struct ev_io sigev; |
708 | static ev_io sigev; |
207 | |
709 | |
208 | static void |
710 | void inline_size |
209 | signals_init (ANSIG *base, int count) |
711 | signals_init (ANSIG *base, int count) |
210 | { |
712 | { |
211 | while (count--) |
713 | while (count--) |
212 | { |
714 | { |
213 | base->head = 0; |
715 | base->head = 0; |
214 | base->gotsig = 0; |
716 | base->gotsig = 0; |
|
|
717 | |
215 | ++base; |
718 | ++base; |
216 | } |
719 | } |
217 | } |
720 | } |
218 | |
721 | |
219 | static void |
722 | static void |
220 | sighandler (int signum) |
723 | sighandler (int signum) |
221 | { |
724 | { |
|
|
725 | #if _WIN32 |
|
|
726 | signal (signum, sighandler); |
|
|
727 | #endif |
|
|
728 | |
222 | signals [signum - 1].gotsig = 1; |
729 | signals [signum - 1].gotsig = 1; |
223 | |
730 | |
224 | if (!gotsig) |
731 | if (!gotsig) |
225 | { |
732 | { |
|
|
733 | int old_errno = errno; |
226 | gotsig = 1; |
734 | gotsig = 1; |
227 | write (sigpipe [1], &gotsig, 1); |
735 | write (sigpipe [1], &signum, 1); |
|
|
736 | errno = old_errno; |
228 | } |
737 | } |
|
|
738 | } |
|
|
739 | |
|
|
740 | void noinline |
|
|
741 | ev_feed_signal_event (EV_P_ int signum) |
|
|
742 | { |
|
|
743 | WL w; |
|
|
744 | |
|
|
745 | #if EV_MULTIPLICITY |
|
|
746 | assert (("feeding signal events is only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
747 | #endif |
|
|
748 | |
|
|
749 | --signum; |
|
|
750 | |
|
|
751 | if (signum < 0 || signum >= signalmax) |
|
|
752 | return; |
|
|
753 | |
|
|
754 | signals [signum].gotsig = 0; |
|
|
755 | |
|
|
756 | for (w = signals [signum].head; w; w = w->next) |
|
|
757 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
229 | } |
758 | } |
230 | |
759 | |
231 | static void |
760 | static void |
232 | sigcb (struct ev_io *iow, int revents) |
761 | sigcb (EV_P_ ev_io *iow, int revents) |
233 | { |
762 | { |
234 | struct ev_signal *w; |
|
|
235 | int sig; |
763 | int signum; |
236 | |
764 | |
|
|
765 | read (sigpipe [0], &revents, 1); |
237 | gotsig = 0; |
766 | gotsig = 0; |
238 | read (sigpipe [0], &revents, 1); |
|
|
239 | |
767 | |
240 | for (sig = signalmax; sig--; ) |
768 | for (signum = signalmax; signum--; ) |
241 | if (signals [sig].gotsig) |
769 | if (signals [signum].gotsig) |
|
|
770 | ev_feed_signal_event (EV_A_ signum + 1); |
|
|
771 | } |
|
|
772 | |
|
|
773 | void inline_speed |
|
|
774 | fd_intern (int fd) |
|
|
775 | { |
|
|
776 | #ifdef _WIN32 |
|
|
777 | int arg = 1; |
|
|
778 | ioctlsocket (_get_osfhandle (fd), FIONBIO, &arg); |
|
|
779 | #else |
|
|
780 | fcntl (fd, F_SETFD, FD_CLOEXEC); |
|
|
781 | fcntl (fd, F_SETFL, O_NONBLOCK); |
|
|
782 | #endif |
|
|
783 | } |
|
|
784 | |
|
|
785 | static void noinline |
|
|
786 | siginit (EV_P) |
|
|
787 | { |
|
|
788 | fd_intern (sigpipe [0]); |
|
|
789 | fd_intern (sigpipe [1]); |
|
|
790 | |
|
|
791 | ev_io_set (&sigev, sigpipe [0], EV_READ); |
|
|
792 | ev_io_start (EV_A_ &sigev); |
|
|
793 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
794 | } |
|
|
795 | |
|
|
796 | /*****************************************************************************/ |
|
|
797 | |
|
|
798 | static ev_child *childs [EV_PID_HASHSIZE]; |
|
|
799 | |
|
|
800 | #ifndef _WIN32 |
|
|
801 | |
|
|
802 | static ev_signal childev; |
|
|
803 | |
|
|
804 | void inline_speed |
|
|
805 | child_reap (EV_P_ ev_signal *sw, int chain, int pid, int status) |
|
|
806 | { |
|
|
807 | ev_child *w; |
|
|
808 | |
|
|
809 | for (w = (ev_child *)childs [chain & (EV_PID_HASHSIZE - 1)]; w; w = (ev_child *)((WL)w)->next) |
|
|
810 | if (w->pid == pid || !w->pid) |
242 | { |
811 | { |
243 | signals [sig].gotsig = 0; |
812 | ev_set_priority (w, ev_priority (sw)); /* need to do it *now* */ |
244 | |
813 | w->rpid = pid; |
245 | for (w = signals [sig].head; w; w = w->next) |
814 | w->rstatus = status; |
246 | event ((struct ev_watcher *)w, EV_SIGNAL); |
815 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
247 | } |
816 | } |
248 | } |
817 | } |
249 | |
818 | |
|
|
819 | #ifndef WCONTINUED |
|
|
820 | # define WCONTINUED 0 |
|
|
821 | #endif |
|
|
822 | |
250 | static void |
823 | static void |
251 | siginit (void) |
824 | childcb (EV_P_ ev_signal *sw, int revents) |
252 | { |
825 | { |
253 | fcntl (sigpipe [0], F_SETFD, FD_CLOEXEC); |
826 | int pid, status; |
254 | fcntl (sigpipe [1], F_SETFD, FD_CLOEXEC); |
|
|
255 | |
827 | |
256 | /* rather than sort out wether we really need nb, set it */ |
828 | /* some systems define WCONTINUED but then fail to support it (linux 2.4) */ |
257 | fcntl (sigpipe [0], F_SETFL, O_NONBLOCK); |
829 | if (0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
258 | fcntl (sigpipe [1], F_SETFL, O_NONBLOCK); |
830 | if (!WCONTINUED |
|
|
831 | || errno != EINVAL |
|
|
832 | || 0 >= (pid = waitpid (-1, &status, WNOHANG | WUNTRACED))) |
|
|
833 | return; |
259 | |
834 | |
260 | evio_set (&sigev, sigpipe [0], EV_READ); |
835 | /* make sure we are called again until all childs have been reaped */ |
261 | evio_start (&sigev); |
836 | /* we need to do it this way so that the callback gets called before we continue */ |
|
|
837 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
|
|
838 | |
|
|
839 | child_reap (EV_A_ sw, pid, pid, status); |
|
|
840 | if (EV_PID_HASHSIZE > 1) |
|
|
841 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but feed_event catches that */ |
262 | } |
842 | } |
|
|
843 | |
|
|
844 | #endif |
263 | |
845 | |
264 | /*****************************************************************************/ |
846 | /*****************************************************************************/ |
265 | |
847 | |
|
|
848 | #if EV_USE_PORT |
|
|
849 | # include "ev_port.c" |
|
|
850 | #endif |
|
|
851 | #if EV_USE_KQUEUE |
|
|
852 | # include "ev_kqueue.c" |
|
|
853 | #endif |
266 | #if HAVE_EPOLL |
854 | #if EV_USE_EPOLL |
267 | # include "ev_epoll.c" |
855 | # include "ev_epoll.c" |
268 | #endif |
856 | #endif |
|
|
857 | #if EV_USE_POLL |
|
|
858 | # include "ev_poll.c" |
|
|
859 | #endif |
269 | #if HAVE_SELECT |
860 | #if EV_USE_SELECT |
270 | # include "ev_select.c" |
861 | # include "ev_select.c" |
271 | #endif |
862 | #endif |
272 | |
863 | |
273 | int ev_init (int flags) |
864 | int |
|
|
865 | ev_version_major (void) |
274 | { |
866 | { |
|
|
867 | return EV_VERSION_MAJOR; |
|
|
868 | } |
|
|
869 | |
|
|
870 | int |
|
|
871 | ev_version_minor (void) |
|
|
872 | { |
|
|
873 | return EV_VERSION_MINOR; |
|
|
874 | } |
|
|
875 | |
|
|
876 | /* return true if we are running with elevated privileges and should ignore env variables */ |
|
|
877 | int inline_size |
|
|
878 | enable_secure (void) |
|
|
879 | { |
|
|
880 | #ifdef _WIN32 |
|
|
881 | return 0; |
|
|
882 | #else |
|
|
883 | return getuid () != geteuid () |
|
|
884 | || getgid () != getegid (); |
|
|
885 | #endif |
|
|
886 | } |
|
|
887 | |
|
|
888 | unsigned int |
|
|
889 | ev_supported_backends (void) |
|
|
890 | { |
|
|
891 | unsigned int flags = 0; |
|
|
892 | |
|
|
893 | if (EV_USE_PORT ) flags |= EVBACKEND_PORT; |
|
|
894 | if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; |
|
|
895 | if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; |
|
|
896 | if (EV_USE_POLL ) flags |= EVBACKEND_POLL; |
|
|
897 | if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; |
|
|
898 | |
|
|
899 | return flags; |
|
|
900 | } |
|
|
901 | |
|
|
902 | unsigned int |
|
|
903 | ev_recommended_backends (void) |
|
|
904 | { |
|
|
905 | unsigned int flags = ev_supported_backends (); |
|
|
906 | |
|
|
907 | #ifndef __NetBSD__ |
|
|
908 | /* kqueue is borked on everything but netbsd apparently */ |
|
|
909 | /* it usually doesn't work correctly on anything but sockets and pipes */ |
|
|
910 | flags &= ~EVBACKEND_KQUEUE; |
|
|
911 | #endif |
|
|
912 | #ifdef __APPLE__ |
|
|
913 | // flags &= ~EVBACKEND_KQUEUE; for documentation |
|
|
914 | flags &= ~EVBACKEND_POLL; |
|
|
915 | #endif |
|
|
916 | |
|
|
917 | return flags; |
|
|
918 | } |
|
|
919 | |
|
|
920 | unsigned int |
|
|
921 | ev_embeddable_backends (void) |
|
|
922 | { |
|
|
923 | return EVBACKEND_EPOLL |
|
|
924 | | EVBACKEND_KQUEUE |
|
|
925 | | EVBACKEND_PORT; |
|
|
926 | } |
|
|
927 | |
|
|
928 | unsigned int |
|
|
929 | ev_backend (EV_P) |
|
|
930 | { |
|
|
931 | return backend; |
|
|
932 | } |
|
|
933 | |
|
|
934 | unsigned int |
|
|
935 | ev_loop_count (EV_P) |
|
|
936 | { |
|
|
937 | return loop_count; |
|
|
938 | } |
|
|
939 | |
|
|
940 | static void noinline |
|
|
941 | loop_init (EV_P_ unsigned int flags) |
|
|
942 | { |
|
|
943 | if (!backend) |
|
|
944 | { |
275 | #if HAVE_MONOTONIC |
945 | #if EV_USE_MONOTONIC |
276 | { |
946 | { |
277 | struct timespec ts; |
947 | struct timespec ts; |
278 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
948 | if (!clock_gettime (CLOCK_MONOTONIC, &ts)) |
279 | have_monotonic = 1; |
949 | have_monotonic = 1; |
280 | } |
950 | } |
281 | #endif |
951 | #endif |
282 | |
952 | |
283 | ev_now = ev_time (); |
953 | ev_rt_now = ev_time (); |
284 | now = get_clock (); |
954 | mn_now = get_clock (); |
285 | diff = ev_now - now; |
955 | now_floor = mn_now; |
|
|
956 | rtmn_diff = ev_rt_now - mn_now; |
286 | |
957 | |
|
|
958 | /* pid check not overridable via env */ |
|
|
959 | #ifndef _WIN32 |
|
|
960 | if (flags & EVFLAG_FORKCHECK) |
|
|
961 | curpid = getpid (); |
|
|
962 | #endif |
|
|
963 | |
|
|
964 | if (!(flags & EVFLAG_NOENV) |
|
|
965 | && !enable_secure () |
|
|
966 | && getenv ("LIBEV_FLAGS")) |
|
|
967 | flags = atoi (getenv ("LIBEV_FLAGS")); |
|
|
968 | |
|
|
969 | if (!(flags & 0x0000ffffUL)) |
|
|
970 | flags |= ev_recommended_backends (); |
|
|
971 | |
|
|
972 | backend = 0; |
|
|
973 | backend_fd = -1; |
|
|
974 | #if EV_USE_INOTIFY |
|
|
975 | fs_fd = -2; |
|
|
976 | #endif |
|
|
977 | |
|
|
978 | #if EV_USE_PORT |
|
|
979 | if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); |
|
|
980 | #endif |
|
|
981 | #if EV_USE_KQUEUE |
|
|
982 | if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); |
|
|
983 | #endif |
|
|
984 | #if EV_USE_EPOLL |
|
|
985 | if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); |
|
|
986 | #endif |
|
|
987 | #if EV_USE_POLL |
|
|
988 | if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); |
|
|
989 | #endif |
|
|
990 | #if EV_USE_SELECT |
|
|
991 | if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); |
|
|
992 | #endif |
|
|
993 | |
|
|
994 | ev_init (&sigev, sigcb); |
|
|
995 | ev_set_priority (&sigev, EV_MAXPRI); |
|
|
996 | } |
|
|
997 | } |
|
|
998 | |
|
|
999 | static void noinline |
|
|
1000 | loop_destroy (EV_P) |
|
|
1001 | { |
|
|
1002 | int i; |
|
|
1003 | |
|
|
1004 | #if EV_USE_INOTIFY |
|
|
1005 | if (fs_fd >= 0) |
|
|
1006 | close (fs_fd); |
|
|
1007 | #endif |
|
|
1008 | |
|
|
1009 | if (backend_fd >= 0) |
|
|
1010 | close (backend_fd); |
|
|
1011 | |
|
|
1012 | #if EV_USE_PORT |
|
|
1013 | if (backend == EVBACKEND_PORT ) port_destroy (EV_A); |
|
|
1014 | #endif |
|
|
1015 | #if EV_USE_KQUEUE |
|
|
1016 | if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); |
|
|
1017 | #endif |
|
|
1018 | #if EV_USE_EPOLL |
|
|
1019 | if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); |
|
|
1020 | #endif |
|
|
1021 | #if EV_USE_POLL |
|
|
1022 | if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); |
|
|
1023 | #endif |
|
|
1024 | #if EV_USE_SELECT |
|
|
1025 | if (backend == EVBACKEND_SELECT) select_destroy (EV_A); |
|
|
1026 | #endif |
|
|
1027 | |
|
|
1028 | for (i = NUMPRI; i--; ) |
|
|
1029 | { |
|
|
1030 | array_free (pending, [i]); |
|
|
1031 | #if EV_IDLE_ENABLE |
|
|
1032 | array_free (idle, [i]); |
|
|
1033 | #endif |
|
|
1034 | } |
|
|
1035 | |
|
|
1036 | /* have to use the microsoft-never-gets-it-right macro */ |
|
|
1037 | array_free (fdchange, EMPTY); |
|
|
1038 | array_free (timer, EMPTY); |
|
|
1039 | #if EV_PERIODIC_ENABLE |
|
|
1040 | array_free (periodic, EMPTY); |
|
|
1041 | #endif |
|
|
1042 | array_free (prepare, EMPTY); |
|
|
1043 | array_free (check, EMPTY); |
|
|
1044 | |
|
|
1045 | backend = 0; |
|
|
1046 | } |
|
|
1047 | |
|
|
1048 | void inline_size infy_fork (EV_P); |
|
|
1049 | |
|
|
1050 | void inline_size |
|
|
1051 | loop_fork (EV_P) |
|
|
1052 | { |
|
|
1053 | #if EV_USE_PORT |
|
|
1054 | if (backend == EVBACKEND_PORT ) port_fork (EV_A); |
|
|
1055 | #endif |
|
|
1056 | #if EV_USE_KQUEUE |
|
|
1057 | if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); |
|
|
1058 | #endif |
|
|
1059 | #if EV_USE_EPOLL |
|
|
1060 | if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); |
|
|
1061 | #endif |
|
|
1062 | #if EV_USE_INOTIFY |
|
|
1063 | infy_fork (EV_A); |
|
|
1064 | #endif |
|
|
1065 | |
|
|
1066 | if (ev_is_active (&sigev)) |
|
|
1067 | { |
|
|
1068 | /* default loop */ |
|
|
1069 | |
|
|
1070 | ev_ref (EV_A); |
|
|
1071 | ev_io_stop (EV_A_ &sigev); |
|
|
1072 | close (sigpipe [0]); |
|
|
1073 | close (sigpipe [1]); |
|
|
1074 | |
|
|
1075 | while (pipe (sigpipe)) |
|
|
1076 | syserr ("(libev) error creating pipe"); |
|
|
1077 | |
|
|
1078 | siginit (EV_A); |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | postfork = 0; |
|
|
1082 | } |
|
|
1083 | |
|
|
1084 | #if EV_MULTIPLICITY |
|
|
1085 | struct ev_loop * |
|
|
1086 | ev_loop_new (unsigned int flags) |
|
|
1087 | { |
|
|
1088 | struct ev_loop *loop = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); |
|
|
1089 | |
|
|
1090 | memset (loop, 0, sizeof (struct ev_loop)); |
|
|
1091 | |
|
|
1092 | loop_init (EV_A_ flags); |
|
|
1093 | |
|
|
1094 | if (ev_backend (EV_A)) |
|
|
1095 | return loop; |
|
|
1096 | |
|
|
1097 | return 0; |
|
|
1098 | } |
|
|
1099 | |
|
|
1100 | void |
|
|
1101 | ev_loop_destroy (EV_P) |
|
|
1102 | { |
|
|
1103 | loop_destroy (EV_A); |
|
|
1104 | ev_free (loop); |
|
|
1105 | } |
|
|
1106 | |
|
|
1107 | void |
|
|
1108 | ev_loop_fork (EV_P) |
|
|
1109 | { |
|
|
1110 | postfork = 1; |
|
|
1111 | } |
|
|
1112 | |
|
|
1113 | #endif |
|
|
1114 | |
|
|
1115 | #if EV_MULTIPLICITY |
|
|
1116 | struct ev_loop * |
|
|
1117 | ev_default_loop_init (unsigned int flags) |
|
|
1118 | #else |
|
|
1119 | int |
|
|
1120 | ev_default_loop (unsigned int flags) |
|
|
1121 | #endif |
|
|
1122 | { |
|
|
1123 | if (sigpipe [0] == sigpipe [1]) |
287 | if (pipe (sigpipe)) |
1124 | if (pipe (sigpipe)) |
288 | return 0; |
1125 | return 0; |
289 | |
1126 | |
290 | ev_method = EVMETHOD_NONE; |
1127 | if (!ev_default_loop_ptr) |
291 | #if HAVE_EPOLL |
|
|
292 | if (ev_method == EVMETHOD_NONE) epoll_init (flags); |
|
|
293 | #endif |
|
|
294 | #if HAVE_SELECT |
|
|
295 | if (ev_method == EVMETHOD_NONE) select_init (flags); |
|
|
296 | #endif |
|
|
297 | |
|
|
298 | if (ev_method) |
|
|
299 | { |
1128 | { |
300 | evw_init (&sigev, sigcb, 0); |
1129 | #if EV_MULTIPLICITY |
|
|
1130 | struct ev_loop *loop = ev_default_loop_ptr = &default_loop_struct; |
|
|
1131 | #else |
|
|
1132 | ev_default_loop_ptr = 1; |
|
|
1133 | #endif |
|
|
1134 | |
|
|
1135 | loop_init (EV_A_ flags); |
|
|
1136 | |
|
|
1137 | if (ev_backend (EV_A)) |
|
|
1138 | { |
301 | siginit (); |
1139 | siginit (EV_A); |
302 | } |
|
|
303 | |
1140 | |
304 | return ev_method; |
1141 | #ifndef _WIN32 |
|
|
1142 | ev_signal_init (&childev, childcb, SIGCHLD); |
|
|
1143 | ev_set_priority (&childev, EV_MAXPRI); |
|
|
1144 | ev_signal_start (EV_A_ &childev); |
|
|
1145 | ev_unref (EV_A); /* child watcher should not keep loop alive */ |
|
|
1146 | #endif |
|
|
1147 | } |
|
|
1148 | else |
|
|
1149 | ev_default_loop_ptr = 0; |
|
|
1150 | } |
|
|
1151 | |
|
|
1152 | return ev_default_loop_ptr; |
|
|
1153 | } |
|
|
1154 | |
|
|
1155 | void |
|
|
1156 | ev_default_destroy (void) |
|
|
1157 | { |
|
|
1158 | #if EV_MULTIPLICITY |
|
|
1159 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1160 | #endif |
|
|
1161 | |
|
|
1162 | #ifndef _WIN32 |
|
|
1163 | ev_ref (EV_A); /* child watcher */ |
|
|
1164 | ev_signal_stop (EV_A_ &childev); |
|
|
1165 | #endif |
|
|
1166 | |
|
|
1167 | ev_ref (EV_A); /* signal watcher */ |
|
|
1168 | ev_io_stop (EV_A_ &sigev); |
|
|
1169 | |
|
|
1170 | close (sigpipe [0]); sigpipe [0] = 0; |
|
|
1171 | close (sigpipe [1]); sigpipe [1] = 0; |
|
|
1172 | |
|
|
1173 | loop_destroy (EV_A); |
|
|
1174 | } |
|
|
1175 | |
|
|
1176 | void |
|
|
1177 | ev_default_fork (void) |
|
|
1178 | { |
|
|
1179 | #if EV_MULTIPLICITY |
|
|
1180 | struct ev_loop *loop = ev_default_loop_ptr; |
|
|
1181 | #endif |
|
|
1182 | |
|
|
1183 | if (backend) |
|
|
1184 | postfork = 1; |
305 | } |
1185 | } |
306 | |
1186 | |
307 | /*****************************************************************************/ |
1187 | /*****************************************************************************/ |
308 | |
1188 | |
309 | void ev_prefork (void) |
|
|
310 | { |
|
|
311 | } |
|
|
312 | |
|
|
313 | void ev_postfork_parent (void) |
|
|
314 | { |
|
|
315 | } |
|
|
316 | |
|
|
317 | void ev_postfork_child (void) |
|
|
318 | { |
|
|
319 | #if HAVE_EPOLL |
|
|
320 | if (ev_method == EVMETHOD_EPOLL) |
|
|
321 | epoll_postfork_child (); |
|
|
322 | #endif |
|
|
323 | |
|
|
324 | evio_stop (&sigev); |
|
|
325 | close (sigpipe [0]); |
|
|
326 | close (sigpipe [1]); |
|
|
327 | pipe (sigpipe); |
|
|
328 | siginit (); |
|
|
329 | } |
|
|
330 | |
|
|
331 | /*****************************************************************************/ |
|
|
332 | |
|
|
333 | static ev_hook hooks [EVHOOK_NUM]; |
|
|
334 | |
|
|
335 | void |
1189 | void |
336 | ev_hook_register (int type, ev_hook hook) |
1190 | ev_invoke (EV_P_ void *w, int revents) |
337 | { |
1191 | { |
338 | hooks [type] = hook; |
1192 | EV_CB_INVOKE ((W)w, revents); |
339 | } |
1193 | } |
340 | |
1194 | |
341 | void |
1195 | void inline_speed |
342 | ev_hook_unregister (int type, ev_hook hook) |
1196 | call_pending (EV_P) |
343 | { |
1197 | { |
344 | hooks [type] = 0; |
|
|
345 | } |
|
|
346 | |
|
|
347 | static void |
|
|
348 | hook_call (int type) |
|
|
349 | { |
|
|
350 | if (hooks [type]) |
|
|
351 | hooks [type] (); |
|
|
352 | } |
|
|
353 | |
|
|
354 | static void |
|
|
355 | fd_reify (void) |
|
|
356 | { |
|
|
357 | int i; |
1198 | int pri; |
358 | |
1199 | |
359 | for (i = 0; i < fdchangecnt; ++i) |
1200 | for (pri = NUMPRI; pri--; ) |
|
|
1201 | while (pendingcnt [pri]) |
360 | { |
1202 | { |
361 | int fd = fdchanges [i]; |
1203 | ANPENDING *p = pendings [pri] + --pendingcnt [pri]; |
362 | ANFD *anfd = anfds + fd; |
|
|
363 | struct ev_io *w; |
|
|
364 | |
1204 | |
365 | int wev = 0; |
1205 | if (expect_true (p->w)) |
366 | |
|
|
367 | for (w = anfd->head; w; w = w->next) |
|
|
368 | wev |= w->events; |
|
|
369 | |
|
|
370 | if (anfd->wev != wev) |
|
|
371 | { |
1206 | { |
372 | method_modify (fd, anfd->wev, wev); |
1207 | /*assert (("non-pending watcher on pending list", p->w->pending));*/ |
373 | anfd->wev = wev; |
|
|
374 | } |
|
|
375 | } |
|
|
376 | |
1208 | |
377 | fdchangecnt = 0; |
|
|
378 | } |
|
|
379 | |
|
|
380 | static void |
|
|
381 | call_pending () |
|
|
382 | { |
|
|
383 | int i; |
|
|
384 | |
|
|
385 | for (i = 0; i < pendingcnt; ++i) |
|
|
386 | { |
|
|
387 | ANPENDING *p = pendings + i; |
|
|
388 | |
|
|
389 | if (p->w) |
|
|
390 | { |
|
|
391 | p->w->pending = 0; |
1209 | p->w->pending = 0; |
392 | p->w->cb (p->w, p->events); |
1210 | EV_CB_INVOKE (p->w, p->events); |
393 | } |
1211 | } |
394 | } |
1212 | } |
395 | |
|
|
396 | pendingcnt = 0; |
|
|
397 | } |
1213 | } |
398 | |
1214 | |
399 | static void |
1215 | void inline_size |
400 | timers_reify (struct ev_timer **timers, int timercnt, ev_tstamp now) |
1216 | timers_reify (EV_P) |
401 | { |
1217 | { |
402 | while (timercnt && timers [0]->at <= now) |
1218 | while (timercnt && ((WT)timers [0])->at <= mn_now) |
403 | { |
1219 | { |
404 | struct ev_timer *w = timers [0]; |
1220 | ev_timer *w = timers [0]; |
|
|
1221 | |
|
|
1222 | /*assert (("inactive timer on timer heap detected", ev_is_active (w)));*/ |
405 | |
1223 | |
406 | /* first reschedule or stop timer */ |
1224 | /* first reschedule or stop timer */ |
407 | if (w->repeat) |
1225 | if (w->repeat) |
408 | { |
1226 | { |
409 | if (w->is_abs) |
1227 | assert (("negative ev_timer repeat value found while processing timers", w->repeat > 0.)); |
410 | w->at += floor ((now - w->at) / w->repeat + 1.) * w->repeat; |
1228 | |
411 | else |
|
|
412 | w->at = now + w->repeat; |
1229 | ((WT)w)->at += w->repeat; |
|
|
1230 | if (((WT)w)->at < mn_now) |
|
|
1231 | ((WT)w)->at = mn_now; |
413 | |
1232 | |
414 | assert (w->at > now); |
|
|
415 | |
|
|
416 | downheap (timers, timercnt, 0); |
1233 | downheap ((WT *)timers, timercnt, 0); |
417 | } |
1234 | } |
418 | else |
1235 | else |
|
|
1236 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
|
|
1237 | |
|
|
1238 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
|
|
1239 | } |
|
|
1240 | } |
|
|
1241 | |
|
|
1242 | #if EV_PERIODIC_ENABLE |
|
|
1243 | void inline_size |
|
|
1244 | periodics_reify (EV_P) |
|
|
1245 | { |
|
|
1246 | while (periodiccnt && ((WT)periodics [0])->at <= ev_rt_now) |
|
|
1247 | { |
|
|
1248 | ev_periodic *w = periodics [0]; |
|
|
1249 | |
|
|
1250 | /*assert (("inactive timer on periodic heap detected", ev_is_active (w)));*/ |
|
|
1251 | |
|
|
1252 | /* first reschedule or stop timer */ |
|
|
1253 | if (w->reschedule_cb) |
419 | { |
1254 | { |
420 | evtimer_stop (w); /* nonrepeating: stop timer */ |
1255 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now + TIME_EPSILON); |
421 | --timercnt; /* maybe pass by reference instead? */ |
1256 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > ev_rt_now)); |
|
|
1257 | downheap ((WT *)periodics, periodiccnt, 0); |
422 | } |
1258 | } |
|
|
1259 | else if (w->interval) |
|
|
1260 | { |
|
|
1261 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
|
|
1262 | if (((WT)w)->at - ev_rt_now <= TIME_EPSILON) ((WT)w)->at += w->interval; |
|
|
1263 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > ev_rt_now)); |
|
|
1264 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
1265 | } |
|
|
1266 | else |
|
|
1267 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
423 | |
1268 | |
424 | event ((struct ev_watcher *)w, EV_TIMEOUT); |
1269 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
425 | } |
1270 | } |
426 | } |
1271 | } |
427 | |
1272 | |
428 | static void |
1273 | static void noinline |
429 | time_update () |
1274 | periodics_reschedule (EV_P) |
430 | { |
1275 | { |
431 | int i; |
1276 | int i; |
432 | ev_now = ev_time (); |
|
|
433 | |
1277 | |
434 | if (have_monotonic) |
1278 | /* adjust periodics after time jump */ |
|
|
1279 | for (i = 0; i < periodiccnt; ++i) |
|
|
1280 | { |
|
|
1281 | ev_periodic *w = periodics [i]; |
|
|
1282 | |
|
|
1283 | if (w->reschedule_cb) |
|
|
1284 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1285 | else if (w->interval) |
|
|
1286 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
435 | { |
1287 | } |
436 | ev_tstamp odiff = diff; |
|
|
437 | |
1288 | |
438 | /* detecting time jumps is much more difficult */ |
1289 | /* now rebuild the heap */ |
439 | for (i = 2; --i; ) /* loop a few times, before making important decisions */ |
1290 | for (i = periodiccnt >> 1; i--; ) |
|
|
1291 | downheap ((WT *)periodics, periodiccnt, i); |
|
|
1292 | } |
|
|
1293 | #endif |
|
|
1294 | |
|
|
1295 | #if EV_IDLE_ENABLE |
|
|
1296 | void inline_size |
|
|
1297 | idle_reify (EV_P) |
|
|
1298 | { |
|
|
1299 | if (expect_false (idleall)) |
|
|
1300 | { |
|
|
1301 | int pri; |
|
|
1302 | |
|
|
1303 | for (pri = NUMPRI; pri--; ) |
440 | { |
1304 | { |
|
|
1305 | if (pendingcnt [pri]) |
|
|
1306 | break; |
|
|
1307 | |
|
|
1308 | if (idlecnt [pri]) |
|
|
1309 | { |
|
|
1310 | queue_events (EV_A_ (W *)idles [pri], idlecnt [pri], EV_IDLE); |
|
|
1311 | break; |
|
|
1312 | } |
|
|
1313 | } |
|
|
1314 | } |
|
|
1315 | } |
|
|
1316 | #endif |
|
|
1317 | |
|
|
1318 | void inline_speed |
|
|
1319 | time_update (EV_P_ ev_tstamp max_block) |
|
|
1320 | { |
|
|
1321 | int i; |
|
|
1322 | |
|
|
1323 | #if EV_USE_MONOTONIC |
|
|
1324 | if (expect_true (have_monotonic)) |
|
|
1325 | { |
|
|
1326 | ev_tstamp odiff = rtmn_diff; |
|
|
1327 | |
441 | now = get_clock (); |
1328 | mn_now = get_clock (); |
|
|
1329 | |
|
|
1330 | /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ |
|
|
1331 | /* interpolate in the meantime */ |
|
|
1332 | if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) |
|
|
1333 | { |
|
|
1334 | ev_rt_now = rtmn_diff + mn_now; |
|
|
1335 | return; |
|
|
1336 | } |
|
|
1337 | |
|
|
1338 | now_floor = mn_now; |
|
|
1339 | ev_rt_now = ev_time (); |
|
|
1340 | |
|
|
1341 | /* loop a few times, before making important decisions. |
|
|
1342 | * on the choice of "4": one iteration isn't enough, |
|
|
1343 | * in case we get preempted during the calls to |
|
|
1344 | * ev_time and get_clock. a second call is almost guaranteed |
|
|
1345 | * to succeed in that case, though. and looping a few more times |
|
|
1346 | * doesn't hurt either as we only do this on time-jumps or |
|
|
1347 | * in the unlikely event of having been preempted here. |
|
|
1348 | */ |
|
|
1349 | for (i = 4; --i; ) |
|
|
1350 | { |
442 | diff = ev_now - now; |
1351 | rtmn_diff = ev_rt_now - mn_now; |
443 | |
1352 | |
444 | if (fabs (odiff - diff) < MIN_TIMEJUMP) |
1353 | if (fabs (odiff - rtmn_diff) < MIN_TIMEJUMP) |
445 | return; /* all is well */ |
1354 | return; /* all is well */ |
446 | |
1355 | |
447 | ev_now = ev_time (); |
1356 | ev_rt_now = ev_time (); |
|
|
1357 | mn_now = get_clock (); |
|
|
1358 | now_floor = mn_now; |
448 | } |
1359 | } |
449 | |
1360 | |
450 | /* time jump detected, reschedule atimers */ |
1361 | # if EV_PERIODIC_ENABLE |
451 | for (i = 0; i < atimercnt; ++i) |
1362 | periodics_reschedule (EV_A); |
|
|
1363 | # endif |
|
|
1364 | /* no timer adjustment, as the monotonic clock doesn't jump */ |
|
|
1365 | /* timers_reschedule (EV_A_ rtmn_diff - odiff) */ |
|
|
1366 | } |
|
|
1367 | else |
|
|
1368 | #endif |
|
|
1369 | { |
|
|
1370 | ev_rt_now = ev_time (); |
|
|
1371 | |
|
|
1372 | if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) |
452 | { |
1373 | { |
453 | struct ev_timer *w = atimers [i]; |
1374 | #if EV_PERIODIC_ENABLE |
454 | w->at += ceil ((ev_now - w->at) / w->repeat + 1.) * w->repeat; |
1375 | periodics_reschedule (EV_A); |
|
|
1376 | #endif |
|
|
1377 | /* adjust timers. this is easy, as the offset is the same for all of them */ |
|
|
1378 | for (i = 0; i < timercnt; ++i) |
|
|
1379 | ((WT)timers [i])->at += ev_rt_now - mn_now; |
455 | } |
1380 | } |
456 | } |
|
|
457 | else |
|
|
458 | { |
|
|
459 | if (now > ev_now || now < ev_now - MAX_BLOCKTIME - MIN_TIMEJUMP) |
|
|
460 | /* time jump detected, adjust rtimers */ |
|
|
461 | for (i = 0; i < rtimercnt; ++i) |
|
|
462 | rtimers [i]->at += ev_now - now; |
|
|
463 | |
1381 | |
464 | now = ev_now; |
1382 | mn_now = ev_rt_now; |
465 | } |
1383 | } |
466 | } |
1384 | } |
467 | |
1385 | |
468 | int ev_loop_done; |
1386 | void |
|
|
1387 | ev_ref (EV_P) |
|
|
1388 | { |
|
|
1389 | ++activecnt; |
|
|
1390 | } |
469 | |
1391 | |
|
|
1392 | void |
|
|
1393 | ev_unref (EV_P) |
|
|
1394 | { |
|
|
1395 | --activecnt; |
|
|
1396 | } |
|
|
1397 | |
|
|
1398 | static int loop_done; |
|
|
1399 | |
|
|
1400 | void |
470 | void ev_loop (int flags) |
1401 | ev_loop (EV_P_ int flags) |
471 | { |
1402 | { |
472 | double block; |
|
|
473 | ev_loop_done = flags & EVLOOP_ONESHOT; |
1403 | loop_done = flags & (EVLOOP_ONESHOT | EVLOOP_NONBLOCK) |
|
|
1404 | ? EVUNLOOP_ONE |
|
|
1405 | : EVUNLOOP_CANCEL; |
|
|
1406 | |
|
|
1407 | call_pending (EV_A); /* in case we recurse, ensure ordering stays nice and clean */ |
474 | |
1408 | |
475 | do |
1409 | do |
476 | { |
1410 | { |
477 | hook_call (EVHOOK_PREPOLL); |
1411 | #ifndef _WIN32 |
|
|
1412 | if (expect_false (curpid)) /* penalise the forking check even more */ |
|
|
1413 | if (expect_false (getpid () != curpid)) |
|
|
1414 | { |
|
|
1415 | curpid = getpid (); |
|
|
1416 | postfork = 1; |
|
|
1417 | } |
|
|
1418 | #endif |
|
|
1419 | |
|
|
1420 | #if EV_FORK_ENABLE |
|
|
1421 | /* we might have forked, so queue fork handlers */ |
|
|
1422 | if (expect_false (postfork)) |
|
|
1423 | if (forkcnt) |
|
|
1424 | { |
|
|
1425 | queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); |
|
|
1426 | call_pending (EV_A); |
|
|
1427 | } |
|
|
1428 | #endif |
|
|
1429 | |
|
|
1430 | /* queue prepare watchers (and execute them) */ |
|
|
1431 | if (expect_false (preparecnt)) |
|
|
1432 | { |
|
|
1433 | queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); |
|
|
1434 | call_pending (EV_A); |
|
|
1435 | } |
|
|
1436 | |
|
|
1437 | if (expect_false (!activecnt)) |
|
|
1438 | break; |
|
|
1439 | |
|
|
1440 | /* we might have forked, so reify kernel state if necessary */ |
|
|
1441 | if (expect_false (postfork)) |
|
|
1442 | loop_fork (EV_A); |
478 | |
1443 | |
479 | /* update fd-related kernel structures */ |
1444 | /* update fd-related kernel structures */ |
480 | fd_reify (); |
1445 | fd_reify (EV_A); |
481 | |
1446 | |
482 | /* calculate blocking time */ |
1447 | /* calculate blocking time */ |
483 | if (flags & EVLOOP_NONBLOCK) |
1448 | { |
484 | block = 0.; |
1449 | ev_tstamp block; |
|
|
1450 | |
|
|
1451 | if (expect_false (flags & EVLOOP_NONBLOCK || idleall || !activecnt)) |
|
|
1452 | block = 0.; /* do not block at all */ |
485 | else |
1453 | else |
486 | { |
1454 | { |
|
|
1455 | /* update time to cancel out callback processing overhead */ |
|
|
1456 | time_update (EV_A_ 1e100); |
|
|
1457 | |
487 | block = MAX_BLOCKTIME; |
1458 | block = MAX_BLOCKTIME; |
488 | |
1459 | |
489 | if (rtimercnt) |
1460 | if (timercnt) |
490 | { |
1461 | { |
491 | ev_tstamp to = rtimers [0]->at - get_clock () + method_fudge; |
1462 | ev_tstamp to = ((WT)timers [0])->at - mn_now + backend_fudge; |
492 | if (block > to) block = to; |
1463 | if (block > to) block = to; |
493 | } |
1464 | } |
494 | |
1465 | |
|
|
1466 | #if EV_PERIODIC_ENABLE |
495 | if (atimercnt) |
1467 | if (periodiccnt) |
496 | { |
1468 | { |
497 | ev_tstamp to = atimers [0]->at - ev_time () + method_fudge; |
1469 | ev_tstamp to = ((WT)periodics [0])->at - ev_rt_now + backend_fudge; |
498 | if (block > to) block = to; |
1470 | if (block > to) block = to; |
499 | } |
1471 | } |
|
|
1472 | #endif |
500 | |
1473 | |
501 | if (block < 0.) block = 0.; |
1474 | if (expect_false (block < 0.)) block = 0.; |
502 | } |
1475 | } |
503 | |
1476 | |
504 | method_poll (block); |
1477 | ++loop_count; |
|
|
1478 | backend_poll (EV_A_ block); |
505 | |
1479 | |
506 | /* update ev_now, do magic */ |
1480 | /* update ev_rt_now, do magic */ |
507 | time_update (); |
1481 | time_update (EV_A_ block); |
|
|
1482 | } |
508 | |
1483 | |
509 | hook_call (EVHOOK_POSTPOLL); |
|
|
510 | |
|
|
511 | /* put pending timers into pendign queue and reschedule them */ |
1484 | /* queue pending timers and reschedule them */ |
512 | /* absolute timers first */ |
1485 | timers_reify (EV_A); /* relative timers called last */ |
513 | timers_reify (atimers, atimercnt, ev_now); |
1486 | #if EV_PERIODIC_ENABLE |
514 | /* relative timers second */ |
1487 | periodics_reify (EV_A); /* absolute timers called first */ |
515 | timers_reify (rtimers, rtimercnt, now); |
1488 | #endif |
516 | |
1489 | |
|
|
1490 | #if EV_IDLE_ENABLE |
|
|
1491 | /* queue idle watchers unless other events are pending */ |
|
|
1492 | idle_reify (EV_A); |
|
|
1493 | #endif |
|
|
1494 | |
|
|
1495 | /* queue check watchers, to be executed first */ |
|
|
1496 | if (expect_false (checkcnt)) |
|
|
1497 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
|
|
1498 | |
517 | call_pending (); |
1499 | call_pending (EV_A); |
|
|
1500 | |
518 | } |
1501 | } |
519 | while (!ev_loop_done); |
1502 | while (expect_true (activecnt && !loop_done)); |
|
|
1503 | |
|
|
1504 | if (loop_done == EVUNLOOP_ONE) |
|
|
1505 | loop_done = EVUNLOOP_CANCEL; |
|
|
1506 | } |
|
|
1507 | |
|
|
1508 | void |
|
|
1509 | ev_unloop (EV_P_ int how) |
|
|
1510 | { |
|
|
1511 | loop_done = how; |
520 | } |
1512 | } |
521 | |
1513 | |
522 | /*****************************************************************************/ |
1514 | /*****************************************************************************/ |
523 | |
1515 | |
524 | static void |
1516 | void inline_size |
525 | wlist_add (struct ev_watcher_list **head, struct ev_watcher_list *elem) |
1517 | wlist_add (WL *head, WL elem) |
526 | { |
1518 | { |
527 | elem->next = *head; |
1519 | elem->next = *head; |
528 | *head = elem; |
1520 | *head = elem; |
529 | } |
1521 | } |
530 | |
1522 | |
531 | static void |
1523 | void inline_size |
532 | wlist_del (struct ev_watcher_list **head, struct ev_watcher_list *elem) |
1524 | wlist_del (WL *head, WL elem) |
533 | { |
1525 | { |
534 | while (*head) |
1526 | while (*head) |
535 | { |
1527 | { |
536 | if (*head == elem) |
1528 | if (*head == elem) |
537 | { |
1529 | { |
… | |
… | |
541 | |
1533 | |
542 | head = &(*head)->next; |
1534 | head = &(*head)->next; |
543 | } |
1535 | } |
544 | } |
1536 | } |
545 | |
1537 | |
546 | static void |
1538 | void inline_speed |
547 | ev_start (struct ev_watcher *w, int active) |
1539 | clear_pending (EV_P_ W w) |
548 | { |
1540 | { |
|
|
1541 | if (w->pending) |
|
|
1542 | { |
|
|
1543 | pendings [ABSPRI (w)][w->pending - 1].w = 0; |
549 | w->pending = 0; |
1544 | w->pending = 0; |
|
|
1545 | } |
|
|
1546 | } |
|
|
1547 | |
|
|
1548 | int |
|
|
1549 | ev_clear_pending (EV_P_ void *w) |
|
|
1550 | { |
|
|
1551 | W w_ = (W)w; |
|
|
1552 | int pending = w_->pending; |
|
|
1553 | |
|
|
1554 | if (expect_true (pending)) |
|
|
1555 | { |
|
|
1556 | ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; |
|
|
1557 | w_->pending = 0; |
|
|
1558 | p->w = 0; |
|
|
1559 | return p->events; |
|
|
1560 | } |
|
|
1561 | else |
|
|
1562 | return 0; |
|
|
1563 | } |
|
|
1564 | |
|
|
1565 | void inline_size |
|
|
1566 | pri_adjust (EV_P_ W w) |
|
|
1567 | { |
|
|
1568 | int pri = w->priority; |
|
|
1569 | pri = pri < EV_MINPRI ? EV_MINPRI : pri; |
|
|
1570 | pri = pri > EV_MAXPRI ? EV_MAXPRI : pri; |
|
|
1571 | w->priority = pri; |
|
|
1572 | } |
|
|
1573 | |
|
|
1574 | void inline_speed |
|
|
1575 | ev_start (EV_P_ W w, int active) |
|
|
1576 | { |
|
|
1577 | pri_adjust (EV_A_ w); |
550 | w->active = active; |
1578 | w->active = active; |
|
|
1579 | ev_ref (EV_A); |
551 | } |
1580 | } |
552 | |
1581 | |
553 | static void |
1582 | void inline_size |
554 | ev_stop (struct ev_watcher *w) |
1583 | ev_stop (EV_P_ W w) |
555 | { |
1584 | { |
556 | if (w->pending) |
1585 | ev_unref (EV_A); |
557 | pendings [w->pending - 1].w = 0; |
|
|
558 | |
|
|
559 | w->active = 0; |
1586 | w->active = 0; |
560 | /* nop */ |
|
|
561 | } |
1587 | } |
562 | |
1588 | |
563 | /*****************************************************************************/ |
1589 | /*****************************************************************************/ |
564 | |
1590 | |
565 | void |
1591 | void noinline |
566 | evio_start (struct ev_io *w) |
1592 | ev_io_start (EV_P_ ev_io *w) |
|
|
1593 | { |
|
|
1594 | int fd = w->fd; |
|
|
1595 | |
|
|
1596 | if (expect_false (ev_is_active (w))) |
|
|
1597 | return; |
|
|
1598 | |
|
|
1599 | assert (("ev_io_start called with negative fd", fd >= 0)); |
|
|
1600 | |
|
|
1601 | ev_start (EV_A_ (W)w, 1); |
|
|
1602 | array_needsize (ANFD, anfds, anfdmax, fd + 1, anfds_init); |
|
|
1603 | wlist_add ((WL *)&anfds[fd].head, (WL)w); |
|
|
1604 | |
|
|
1605 | fd_change (EV_A_ fd); |
|
|
1606 | } |
|
|
1607 | |
|
|
1608 | void noinline |
|
|
1609 | ev_io_stop (EV_P_ ev_io *w) |
|
|
1610 | { |
|
|
1611 | clear_pending (EV_A_ (W)w); |
|
|
1612 | if (expect_false (!ev_is_active (w))) |
|
|
1613 | return; |
|
|
1614 | |
|
|
1615 | assert (("ev_io_start called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); |
|
|
1616 | |
|
|
1617 | wlist_del ((WL *)&anfds[w->fd].head, (WL)w); |
|
|
1618 | ev_stop (EV_A_ (W)w); |
|
|
1619 | |
|
|
1620 | fd_change (EV_A_ w->fd); |
|
|
1621 | } |
|
|
1622 | |
|
|
1623 | void noinline |
|
|
1624 | ev_timer_start (EV_P_ ev_timer *w) |
|
|
1625 | { |
|
|
1626 | if (expect_false (ev_is_active (w))) |
|
|
1627 | return; |
|
|
1628 | |
|
|
1629 | ((WT)w)->at += mn_now; |
|
|
1630 | |
|
|
1631 | assert (("ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); |
|
|
1632 | |
|
|
1633 | ev_start (EV_A_ (W)w, ++timercnt); |
|
|
1634 | array_needsize (ev_timer *, timers, timermax, timercnt, EMPTY2); |
|
|
1635 | timers [timercnt - 1] = w; |
|
|
1636 | upheap ((WT *)timers, timercnt - 1); |
|
|
1637 | |
|
|
1638 | /*assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w));*/ |
|
|
1639 | } |
|
|
1640 | |
|
|
1641 | void noinline |
|
|
1642 | ev_timer_stop (EV_P_ ev_timer *w) |
|
|
1643 | { |
|
|
1644 | clear_pending (EV_A_ (W)w); |
|
|
1645 | if (expect_false (!ev_is_active (w))) |
|
|
1646 | return; |
|
|
1647 | |
|
|
1648 | assert (("internal timer heap corruption", timers [((W)w)->active - 1] == w)); |
|
|
1649 | |
|
|
1650 | { |
|
|
1651 | int active = ((W)w)->active; |
|
|
1652 | |
|
|
1653 | if (expect_true (--active < --timercnt)) |
|
|
1654 | { |
|
|
1655 | timers [active] = timers [timercnt]; |
|
|
1656 | adjustheap ((WT *)timers, timercnt, active); |
|
|
1657 | } |
|
|
1658 | } |
|
|
1659 | |
|
|
1660 | ((WT)w)->at -= mn_now; |
|
|
1661 | |
|
|
1662 | ev_stop (EV_A_ (W)w); |
|
|
1663 | } |
|
|
1664 | |
|
|
1665 | void noinline |
|
|
1666 | ev_timer_again (EV_P_ ev_timer *w) |
567 | { |
1667 | { |
568 | if (ev_is_active (w)) |
1668 | if (ev_is_active (w)) |
569 | return; |
|
|
570 | |
|
|
571 | int fd = w->fd; |
|
|
572 | |
|
|
573 | ev_start ((struct ev_watcher *)w, 1); |
|
|
574 | array_needsize (anfds, anfdmax, fd + 1, anfds_init); |
|
|
575 | wlist_add ((struct ev_watcher_list **)&anfds[fd].head, (struct ev_watcher_list *)w); |
|
|
576 | |
|
|
577 | ++fdchangecnt; |
|
|
578 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
579 | fdchanges [fdchangecnt - 1] = fd; |
|
|
580 | } |
|
|
581 | |
|
|
582 | void |
|
|
583 | evio_stop (struct ev_io *w) |
|
|
584 | { |
|
|
585 | if (!ev_is_active (w)) |
|
|
586 | return; |
|
|
587 | |
|
|
588 | wlist_del ((struct ev_watcher_list **)&anfds[w->fd].head, (struct ev_watcher_list *)w); |
|
|
589 | ev_stop ((struct ev_watcher *)w); |
|
|
590 | |
|
|
591 | ++fdchangecnt; |
|
|
592 | array_needsize (fdchanges, fdchangemax, fdchangecnt, ); |
|
|
593 | fdchanges [fdchangecnt - 1] = w->fd; |
|
|
594 | } |
|
|
595 | |
|
|
596 | void |
|
|
597 | evtimer_start (struct ev_timer *w) |
|
|
598 | { |
|
|
599 | if (ev_is_active (w)) |
|
|
600 | return; |
|
|
601 | |
|
|
602 | if (w->is_abs) |
|
|
603 | { |
1669 | { |
604 | /* this formula differs from the one in timer_reify becuse we do not round up */ |
|
|
605 | if (w->repeat) |
1670 | if (w->repeat) |
606 | w->at += ceil ((ev_now - w->at) / w->repeat) * w->repeat; |
1671 | { |
|
|
1672 | ((WT)w)->at = mn_now + w->repeat; |
|
|
1673 | adjustheap ((WT *)timers, timercnt, ((W)w)->active - 1); |
|
|
1674 | } |
|
|
1675 | else |
|
|
1676 | ev_timer_stop (EV_A_ w); |
|
|
1677 | } |
|
|
1678 | else if (w->repeat) |
|
|
1679 | { |
|
|
1680 | w->at = w->repeat; |
|
|
1681 | ev_timer_start (EV_A_ w); |
|
|
1682 | } |
|
|
1683 | } |
607 | |
1684 | |
608 | ev_start ((struct ev_watcher *)w, ++atimercnt); |
1685 | #if EV_PERIODIC_ENABLE |
609 | array_needsize (atimers, atimermax, atimercnt, ); |
1686 | void noinline |
610 | atimers [atimercnt - 1] = w; |
1687 | ev_periodic_start (EV_P_ ev_periodic *w) |
611 | upheap (atimers, atimercnt - 1); |
1688 | { |
|
|
1689 | if (expect_false (ev_is_active (w))) |
|
|
1690 | return; |
|
|
1691 | |
|
|
1692 | if (w->reschedule_cb) |
|
|
1693 | ((WT)w)->at = w->reschedule_cb (w, ev_rt_now); |
|
|
1694 | else if (w->interval) |
|
|
1695 | { |
|
|
1696 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
|
|
1697 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
|
|
1698 | ((WT)w)->at = w->offset + ceil ((ev_rt_now - w->offset) / w->interval) * w->interval; |
612 | } |
1699 | } |
613 | else |
1700 | else |
614 | { |
1701 | ((WT)w)->at = w->offset; |
615 | w->at += now; |
|
|
616 | |
1702 | |
617 | ev_start ((struct ev_watcher *)w, ++rtimercnt); |
1703 | ev_start (EV_A_ (W)w, ++periodiccnt); |
618 | array_needsize (rtimers, rtimermax, rtimercnt, ); |
1704 | array_needsize (ev_periodic *, periodics, periodicmax, periodiccnt, EMPTY2); |
619 | rtimers [rtimercnt - 1] = w; |
1705 | periodics [periodiccnt - 1] = w; |
620 | upheap (rtimers, rtimercnt - 1); |
1706 | upheap ((WT *)periodics, periodiccnt - 1); |
621 | } |
|
|
622 | |
1707 | |
|
|
1708 | /*assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w));*/ |
623 | } |
1709 | } |
624 | |
1710 | |
625 | void |
1711 | void noinline |
626 | evtimer_stop (struct ev_timer *w) |
1712 | ev_periodic_stop (EV_P_ ev_periodic *w) |
627 | { |
1713 | { |
|
|
1714 | clear_pending (EV_A_ (W)w); |
628 | if (!ev_is_active (w)) |
1715 | if (expect_false (!ev_is_active (w))) |
629 | return; |
1716 | return; |
630 | |
1717 | |
631 | if (w->is_abs) |
1718 | assert (("internal periodic heap corruption", periodics [((W)w)->active - 1] == w)); |
|
|
1719 | |
632 | { |
1720 | { |
633 | if (w->active < atimercnt--) |
1721 | int active = ((W)w)->active; |
|
|
1722 | |
|
|
1723 | if (expect_true (--active < --periodiccnt)) |
634 | { |
1724 | { |
635 | atimers [w->active - 1] = atimers [atimercnt]; |
1725 | periodics [active] = periodics [periodiccnt]; |
636 | downheap (atimers, atimercnt, w->active - 1); |
1726 | adjustheap ((WT *)periodics, periodiccnt, active); |
637 | } |
1727 | } |
638 | } |
1728 | } |
639 | else |
|
|
640 | { |
|
|
641 | if (w->active < rtimercnt--) |
|
|
642 | { |
|
|
643 | rtimers [w->active - 1] = rtimers [rtimercnt]; |
|
|
644 | downheap (rtimers, rtimercnt, w->active - 1); |
|
|
645 | } |
|
|
646 | } |
|
|
647 | |
1729 | |
648 | ev_stop ((struct ev_watcher *)w); |
1730 | ev_stop (EV_A_ (W)w); |
649 | } |
1731 | } |
650 | |
1732 | |
651 | void |
1733 | void noinline |
|
|
1734 | ev_periodic_again (EV_P_ ev_periodic *w) |
|
|
1735 | { |
|
|
1736 | /* TODO: use adjustheap and recalculation */ |
|
|
1737 | ev_periodic_stop (EV_A_ w); |
|
|
1738 | ev_periodic_start (EV_A_ w); |
|
|
1739 | } |
|
|
1740 | #endif |
|
|
1741 | |
|
|
1742 | #ifndef SA_RESTART |
|
|
1743 | # define SA_RESTART 0 |
|
|
1744 | #endif |
|
|
1745 | |
|
|
1746 | void noinline |
652 | evsignal_start (struct ev_signal *w) |
1747 | ev_signal_start (EV_P_ ev_signal *w) |
653 | { |
1748 | { |
|
|
1749 | #if EV_MULTIPLICITY |
|
|
1750 | assert (("signal watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1751 | #endif |
654 | if (ev_is_active (w)) |
1752 | if (expect_false (ev_is_active (w))) |
655 | return; |
1753 | return; |
656 | |
1754 | |
657 | ev_start ((struct ev_watcher *)w, 1); |
1755 | assert (("ev_signal_start called with illegal signal number", w->signum > 0)); |
|
|
1756 | |
|
|
1757 | { |
|
|
1758 | #ifndef _WIN32 |
|
|
1759 | sigset_t full, prev; |
|
|
1760 | sigfillset (&full); |
|
|
1761 | sigprocmask (SIG_SETMASK, &full, &prev); |
|
|
1762 | #endif |
|
|
1763 | |
658 | array_needsize (signals, signalmax, w->signum, signals_init); |
1764 | array_needsize (ANSIG, signals, signalmax, w->signum, signals_init); |
659 | wlist_add ((struct ev_watcher_list **)&signals [w->signum - 1].head, (struct ev_watcher_list *)w); |
|
|
660 | |
1765 | |
|
|
1766 | #ifndef _WIN32 |
|
|
1767 | sigprocmask (SIG_SETMASK, &prev, 0); |
|
|
1768 | #endif |
|
|
1769 | } |
|
|
1770 | |
|
|
1771 | ev_start (EV_A_ (W)w, 1); |
|
|
1772 | wlist_add ((WL *)&signals [w->signum - 1].head, (WL)w); |
|
|
1773 | |
661 | if (!w->next) |
1774 | if (!((WL)w)->next) |
662 | { |
1775 | { |
|
|
1776 | #if _WIN32 |
|
|
1777 | signal (w->signum, sighandler); |
|
|
1778 | #else |
663 | struct sigaction sa; |
1779 | struct sigaction sa; |
664 | sa.sa_handler = sighandler; |
1780 | sa.sa_handler = sighandler; |
665 | sigfillset (&sa.sa_mask); |
1781 | sigfillset (&sa.sa_mask); |
666 | sa.sa_flags = 0; |
1782 | sa.sa_flags = SA_RESTART; /* if restarting works we save one iteration */ |
667 | sigaction (w->signum, &sa, 0); |
1783 | sigaction (w->signum, &sa, 0); |
|
|
1784 | #endif |
668 | } |
1785 | } |
669 | } |
1786 | } |
670 | |
1787 | |
671 | void |
1788 | void noinline |
672 | evsignal_stop (struct ev_signal *w) |
1789 | ev_signal_stop (EV_P_ ev_signal *w) |
673 | { |
1790 | { |
|
|
1791 | clear_pending (EV_A_ (W)w); |
674 | if (!ev_is_active (w)) |
1792 | if (expect_false (!ev_is_active (w))) |
675 | return; |
1793 | return; |
676 | |
1794 | |
677 | wlist_del ((struct ev_watcher_list **)&signals [w->signum - 1].head, (struct ev_watcher_list *)w); |
1795 | wlist_del ((WL *)&signals [w->signum - 1].head, (WL)w); |
678 | ev_stop ((struct ev_watcher *)w); |
1796 | ev_stop (EV_A_ (W)w); |
679 | |
1797 | |
680 | if (!signals [w->signum - 1].head) |
1798 | if (!signals [w->signum - 1].head) |
681 | signal (w->signum, SIG_DFL); |
1799 | signal (w->signum, SIG_DFL); |
682 | } |
1800 | } |
683 | |
1801 | |
|
|
1802 | void |
|
|
1803 | ev_child_start (EV_P_ ev_child *w) |
|
|
1804 | { |
|
|
1805 | #if EV_MULTIPLICITY |
|
|
1806 | assert (("child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); |
|
|
1807 | #endif |
|
|
1808 | if (expect_false (ev_is_active (w))) |
|
|
1809 | return; |
|
|
1810 | |
|
|
1811 | ev_start (EV_A_ (W)w, 1); |
|
|
1812 | wlist_add ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
1813 | } |
|
|
1814 | |
|
|
1815 | void |
|
|
1816 | ev_child_stop (EV_P_ ev_child *w) |
|
|
1817 | { |
|
|
1818 | clear_pending (EV_A_ (W)w); |
|
|
1819 | if (expect_false (!ev_is_active (w))) |
|
|
1820 | return; |
|
|
1821 | |
|
|
1822 | wlist_del ((WL *)&childs [w->pid & (EV_PID_HASHSIZE - 1)], (WL)w); |
|
|
1823 | ev_stop (EV_A_ (W)w); |
|
|
1824 | } |
|
|
1825 | |
|
|
1826 | #if EV_STAT_ENABLE |
|
|
1827 | |
|
|
1828 | # ifdef _WIN32 |
|
|
1829 | # undef lstat |
|
|
1830 | # define lstat(a,b) _stati64 (a,b) |
|
|
1831 | # endif |
|
|
1832 | |
|
|
1833 | #define DEF_STAT_INTERVAL 5.0074891 |
|
|
1834 | #define MIN_STAT_INTERVAL 0.1074891 |
|
|
1835 | |
|
|
1836 | static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); |
|
|
1837 | |
|
|
1838 | #if EV_USE_INOTIFY |
|
|
1839 | # define EV_INOTIFY_BUFSIZE 8192 |
|
|
1840 | |
|
|
1841 | static void noinline |
|
|
1842 | infy_add (EV_P_ ev_stat *w) |
|
|
1843 | { |
|
|
1844 | w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); |
|
|
1845 | |
|
|
1846 | if (w->wd < 0) |
|
|
1847 | { |
|
|
1848 | ev_timer_start (EV_A_ &w->timer); /* this is not race-free, so we still need to recheck periodically */ |
|
|
1849 | |
|
|
1850 | /* monitor some parent directory for speedup hints */ |
|
|
1851 | if ((errno == ENOENT || errno == EACCES) && strlen (w->path) < 4096) |
|
|
1852 | { |
|
|
1853 | char path [4096]; |
|
|
1854 | strcpy (path, w->path); |
|
|
1855 | |
|
|
1856 | do |
|
|
1857 | { |
|
|
1858 | int mask = IN_MASK_ADD | IN_DELETE_SELF | IN_MOVE_SELF |
|
|
1859 | | (errno == EACCES ? IN_ATTRIB : IN_CREATE | IN_MOVED_TO); |
|
|
1860 | |
|
|
1861 | char *pend = strrchr (path, '/'); |
|
|
1862 | |
|
|
1863 | if (!pend) |
|
|
1864 | break; /* whoops, no '/', complain to your admin */ |
|
|
1865 | |
|
|
1866 | *pend = 0; |
|
|
1867 | w->wd = inotify_add_watch (fs_fd, path, mask); |
|
|
1868 | } |
|
|
1869 | while (w->wd < 0 && (errno == ENOENT || errno == EACCES)); |
|
|
1870 | } |
|
|
1871 | } |
|
|
1872 | else |
|
|
1873 | ev_timer_stop (EV_A_ &w->timer); /* we can watch this in a race-free way */ |
|
|
1874 | |
|
|
1875 | if (w->wd >= 0) |
|
|
1876 | wlist_add (&fs_hash [w->wd & (EV_INOTIFY_HASHSIZE - 1)].head, (WL)w); |
|
|
1877 | } |
|
|
1878 | |
|
|
1879 | static void noinline |
|
|
1880 | infy_del (EV_P_ ev_stat *w) |
|
|
1881 | { |
|
|
1882 | int slot; |
|
|
1883 | int wd = w->wd; |
|
|
1884 | |
|
|
1885 | if (wd < 0) |
|
|
1886 | return; |
|
|
1887 | |
|
|
1888 | w->wd = -2; |
|
|
1889 | slot = wd & (EV_INOTIFY_HASHSIZE - 1); |
|
|
1890 | wlist_del (&fs_hash [slot].head, (WL)w); |
|
|
1891 | |
|
|
1892 | /* remove this watcher, if others are watching it, they will rearm */ |
|
|
1893 | inotify_rm_watch (fs_fd, wd); |
|
|
1894 | } |
|
|
1895 | |
|
|
1896 | static void noinline |
|
|
1897 | infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) |
|
|
1898 | { |
|
|
1899 | if (slot < 0) |
|
|
1900 | /* overflow, need to check for all hahs slots */ |
|
|
1901 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1902 | infy_wd (EV_A_ slot, wd, ev); |
|
|
1903 | else |
|
|
1904 | { |
|
|
1905 | WL w_; |
|
|
1906 | |
|
|
1907 | for (w_ = fs_hash [slot & (EV_INOTIFY_HASHSIZE - 1)].head; w_; ) |
|
|
1908 | { |
|
|
1909 | ev_stat *w = (ev_stat *)w_; |
|
|
1910 | w_ = w_->next; /* lets us remove this watcher and all before it */ |
|
|
1911 | |
|
|
1912 | if (w->wd == wd || wd == -1) |
|
|
1913 | { |
|
|
1914 | if (ev->mask & (IN_IGNORED | IN_UNMOUNT | IN_DELETE_SELF)) |
|
|
1915 | { |
|
|
1916 | w->wd = -1; |
|
|
1917 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1918 | } |
|
|
1919 | |
|
|
1920 | stat_timer_cb (EV_A_ &w->timer, 0); |
|
|
1921 | } |
|
|
1922 | } |
|
|
1923 | } |
|
|
1924 | } |
|
|
1925 | |
|
|
1926 | static void |
|
|
1927 | infy_cb (EV_P_ ev_io *w, int revents) |
|
|
1928 | { |
|
|
1929 | char buf [EV_INOTIFY_BUFSIZE]; |
|
|
1930 | struct inotify_event *ev = (struct inotify_event *)buf; |
|
|
1931 | int ofs; |
|
|
1932 | int len = read (fs_fd, buf, sizeof (buf)); |
|
|
1933 | |
|
|
1934 | for (ofs = 0; ofs < len; ofs += sizeof (struct inotify_event) + ev->len) |
|
|
1935 | infy_wd (EV_A_ ev->wd, ev->wd, ev); |
|
|
1936 | } |
|
|
1937 | |
|
|
1938 | void inline_size |
|
|
1939 | infy_init (EV_P) |
|
|
1940 | { |
|
|
1941 | if (fs_fd != -2) |
|
|
1942 | return; |
|
|
1943 | |
|
|
1944 | fs_fd = inotify_init (); |
|
|
1945 | |
|
|
1946 | if (fs_fd >= 0) |
|
|
1947 | { |
|
|
1948 | ev_io_init (&fs_w, infy_cb, fs_fd, EV_READ); |
|
|
1949 | ev_set_priority (&fs_w, EV_MAXPRI); |
|
|
1950 | ev_io_start (EV_A_ &fs_w); |
|
|
1951 | } |
|
|
1952 | } |
|
|
1953 | |
|
|
1954 | void inline_size |
|
|
1955 | infy_fork (EV_P) |
|
|
1956 | { |
|
|
1957 | int slot; |
|
|
1958 | |
|
|
1959 | if (fs_fd < 0) |
|
|
1960 | return; |
|
|
1961 | |
|
|
1962 | close (fs_fd); |
|
|
1963 | fs_fd = inotify_init (); |
|
|
1964 | |
|
|
1965 | for (slot = 0; slot < EV_INOTIFY_HASHSIZE; ++slot) |
|
|
1966 | { |
|
|
1967 | WL w_ = fs_hash [slot].head; |
|
|
1968 | fs_hash [slot].head = 0; |
|
|
1969 | |
|
|
1970 | while (w_) |
|
|
1971 | { |
|
|
1972 | ev_stat *w = (ev_stat *)w_; |
|
|
1973 | w_ = w_->next; /* lets us add this watcher */ |
|
|
1974 | |
|
|
1975 | w->wd = -1; |
|
|
1976 | |
|
|
1977 | if (fs_fd >= 0) |
|
|
1978 | infy_add (EV_A_ w); /* re-add, no matter what */ |
|
|
1979 | else |
|
|
1980 | ev_timer_start (EV_A_ &w->timer); |
|
|
1981 | } |
|
|
1982 | |
|
|
1983 | } |
|
|
1984 | } |
|
|
1985 | |
|
|
1986 | #endif |
|
|
1987 | |
|
|
1988 | void |
|
|
1989 | ev_stat_stat (EV_P_ ev_stat *w) |
|
|
1990 | { |
|
|
1991 | if (lstat (w->path, &w->attr) < 0) |
|
|
1992 | w->attr.st_nlink = 0; |
|
|
1993 | else if (!w->attr.st_nlink) |
|
|
1994 | w->attr.st_nlink = 1; |
|
|
1995 | } |
|
|
1996 | |
|
|
1997 | static void noinline |
|
|
1998 | stat_timer_cb (EV_P_ ev_timer *w_, int revents) |
|
|
1999 | { |
|
|
2000 | ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); |
|
|
2001 | |
|
|
2002 | /* we copy this here each the time so that */ |
|
|
2003 | /* prev has the old value when the callback gets invoked */ |
|
|
2004 | w->prev = w->attr; |
|
|
2005 | ev_stat_stat (EV_A_ w); |
|
|
2006 | |
|
|
2007 | /* memcmp doesn't work on netbsd, they.... do stuff to their struct stat */ |
|
|
2008 | if ( |
|
|
2009 | w->prev.st_dev != w->attr.st_dev |
|
|
2010 | || w->prev.st_ino != w->attr.st_ino |
|
|
2011 | || w->prev.st_mode != w->attr.st_mode |
|
|
2012 | || w->prev.st_nlink != w->attr.st_nlink |
|
|
2013 | || w->prev.st_uid != w->attr.st_uid |
|
|
2014 | || w->prev.st_gid != w->attr.st_gid |
|
|
2015 | || w->prev.st_rdev != w->attr.st_rdev |
|
|
2016 | || w->prev.st_size != w->attr.st_size |
|
|
2017 | || w->prev.st_atime != w->attr.st_atime |
|
|
2018 | || w->prev.st_mtime != w->attr.st_mtime |
|
|
2019 | || w->prev.st_ctime != w->attr.st_ctime |
|
|
2020 | ) { |
|
|
2021 | #if EV_USE_INOTIFY |
|
|
2022 | infy_del (EV_A_ w); |
|
|
2023 | infy_add (EV_A_ w); |
|
|
2024 | ev_stat_stat (EV_A_ w); /* avoid race... */ |
|
|
2025 | #endif |
|
|
2026 | |
|
|
2027 | ev_feed_event (EV_A_ w, EV_STAT); |
|
|
2028 | } |
|
|
2029 | } |
|
|
2030 | |
|
|
2031 | void |
|
|
2032 | ev_stat_start (EV_P_ ev_stat *w) |
|
|
2033 | { |
|
|
2034 | if (expect_false (ev_is_active (w))) |
|
|
2035 | return; |
|
|
2036 | |
|
|
2037 | /* since we use memcmp, we need to clear any padding data etc. */ |
|
|
2038 | memset (&w->prev, 0, sizeof (ev_statdata)); |
|
|
2039 | memset (&w->attr, 0, sizeof (ev_statdata)); |
|
|
2040 | |
|
|
2041 | ev_stat_stat (EV_A_ w); |
|
|
2042 | |
|
|
2043 | if (w->interval < MIN_STAT_INTERVAL) |
|
|
2044 | w->interval = w->interval ? MIN_STAT_INTERVAL : DEF_STAT_INTERVAL; |
|
|
2045 | |
|
|
2046 | ev_timer_init (&w->timer, stat_timer_cb, w->interval, w->interval); |
|
|
2047 | ev_set_priority (&w->timer, ev_priority (w)); |
|
|
2048 | |
|
|
2049 | #if EV_USE_INOTIFY |
|
|
2050 | infy_init (EV_A); |
|
|
2051 | |
|
|
2052 | if (fs_fd >= 0) |
|
|
2053 | infy_add (EV_A_ w); |
|
|
2054 | else |
|
|
2055 | #endif |
|
|
2056 | ev_timer_start (EV_A_ &w->timer); |
|
|
2057 | |
|
|
2058 | ev_start (EV_A_ (W)w, 1); |
|
|
2059 | } |
|
|
2060 | |
|
|
2061 | void |
|
|
2062 | ev_stat_stop (EV_P_ ev_stat *w) |
|
|
2063 | { |
|
|
2064 | clear_pending (EV_A_ (W)w); |
|
|
2065 | if (expect_false (!ev_is_active (w))) |
|
|
2066 | return; |
|
|
2067 | |
|
|
2068 | #if EV_USE_INOTIFY |
|
|
2069 | infy_del (EV_A_ w); |
|
|
2070 | #endif |
|
|
2071 | ev_timer_stop (EV_A_ &w->timer); |
|
|
2072 | |
|
|
2073 | ev_stop (EV_A_ (W)w); |
|
|
2074 | } |
|
|
2075 | #endif |
|
|
2076 | |
|
|
2077 | #if EV_IDLE_ENABLE |
|
|
2078 | void |
|
|
2079 | ev_idle_start (EV_P_ ev_idle *w) |
|
|
2080 | { |
|
|
2081 | if (expect_false (ev_is_active (w))) |
|
|
2082 | return; |
|
|
2083 | |
|
|
2084 | pri_adjust (EV_A_ (W)w); |
|
|
2085 | |
|
|
2086 | { |
|
|
2087 | int active = ++idlecnt [ABSPRI (w)]; |
|
|
2088 | |
|
|
2089 | ++idleall; |
|
|
2090 | ev_start (EV_A_ (W)w, active); |
|
|
2091 | |
|
|
2092 | array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); |
|
|
2093 | idles [ABSPRI (w)][active - 1] = w; |
|
|
2094 | } |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | void |
|
|
2098 | ev_idle_stop (EV_P_ ev_idle *w) |
|
|
2099 | { |
|
|
2100 | clear_pending (EV_A_ (W)w); |
|
|
2101 | if (expect_false (!ev_is_active (w))) |
|
|
2102 | return; |
|
|
2103 | |
|
|
2104 | { |
|
|
2105 | int active = ((W)w)->active; |
|
|
2106 | |
|
|
2107 | idles [ABSPRI (w)][active - 1] = idles [ABSPRI (w)][--idlecnt [ABSPRI (w)]]; |
|
|
2108 | ((W)idles [ABSPRI (w)][active - 1])->active = active; |
|
|
2109 | |
|
|
2110 | ev_stop (EV_A_ (W)w); |
|
|
2111 | --idleall; |
|
|
2112 | } |
|
|
2113 | } |
|
|
2114 | #endif |
|
|
2115 | |
|
|
2116 | void |
|
|
2117 | ev_prepare_start (EV_P_ ev_prepare *w) |
|
|
2118 | { |
|
|
2119 | if (expect_false (ev_is_active (w))) |
|
|
2120 | return; |
|
|
2121 | |
|
|
2122 | ev_start (EV_A_ (W)w, ++preparecnt); |
|
|
2123 | array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); |
|
|
2124 | prepares [preparecnt - 1] = w; |
|
|
2125 | } |
|
|
2126 | |
|
|
2127 | void |
|
|
2128 | ev_prepare_stop (EV_P_ ev_prepare *w) |
|
|
2129 | { |
|
|
2130 | clear_pending (EV_A_ (W)w); |
|
|
2131 | if (expect_false (!ev_is_active (w))) |
|
|
2132 | return; |
|
|
2133 | |
|
|
2134 | { |
|
|
2135 | int active = ((W)w)->active; |
|
|
2136 | prepares [active - 1] = prepares [--preparecnt]; |
|
|
2137 | ((W)prepares [active - 1])->active = active; |
|
|
2138 | } |
|
|
2139 | |
|
|
2140 | ev_stop (EV_A_ (W)w); |
|
|
2141 | } |
|
|
2142 | |
|
|
2143 | void |
|
|
2144 | ev_check_start (EV_P_ ev_check *w) |
|
|
2145 | { |
|
|
2146 | if (expect_false (ev_is_active (w))) |
|
|
2147 | return; |
|
|
2148 | |
|
|
2149 | ev_start (EV_A_ (W)w, ++checkcnt); |
|
|
2150 | array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); |
|
|
2151 | checks [checkcnt - 1] = w; |
|
|
2152 | } |
|
|
2153 | |
|
|
2154 | void |
|
|
2155 | ev_check_stop (EV_P_ ev_check *w) |
|
|
2156 | { |
|
|
2157 | clear_pending (EV_A_ (W)w); |
|
|
2158 | if (expect_false (!ev_is_active (w))) |
|
|
2159 | return; |
|
|
2160 | |
|
|
2161 | { |
|
|
2162 | int active = ((W)w)->active; |
|
|
2163 | checks [active - 1] = checks [--checkcnt]; |
|
|
2164 | ((W)checks [active - 1])->active = active; |
|
|
2165 | } |
|
|
2166 | |
|
|
2167 | ev_stop (EV_A_ (W)w); |
|
|
2168 | } |
|
|
2169 | |
|
|
2170 | #if EV_EMBED_ENABLE |
|
|
2171 | void noinline |
|
|
2172 | ev_embed_sweep (EV_P_ ev_embed *w) |
|
|
2173 | { |
|
|
2174 | ev_loop (w->loop, EVLOOP_NONBLOCK); |
|
|
2175 | } |
|
|
2176 | |
|
|
2177 | static void |
|
|
2178 | embed_cb (EV_P_ ev_io *io, int revents) |
|
|
2179 | { |
|
|
2180 | ev_embed *w = (ev_embed *)(((char *)io) - offsetof (ev_embed, io)); |
|
|
2181 | |
|
|
2182 | if (ev_cb (w)) |
|
|
2183 | ev_feed_event (EV_A_ (W)w, EV_EMBED); |
|
|
2184 | else |
|
|
2185 | ev_embed_sweep (loop, w); |
|
|
2186 | } |
|
|
2187 | |
|
|
2188 | void |
|
|
2189 | ev_embed_start (EV_P_ ev_embed *w) |
|
|
2190 | { |
|
|
2191 | if (expect_false (ev_is_active (w))) |
|
|
2192 | return; |
|
|
2193 | |
|
|
2194 | { |
|
|
2195 | struct ev_loop *loop = w->loop; |
|
|
2196 | assert (("loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); |
|
|
2197 | ev_io_init (&w->io, embed_cb, backend_fd, EV_READ); |
|
|
2198 | } |
|
|
2199 | |
|
|
2200 | ev_set_priority (&w->io, ev_priority (w)); |
|
|
2201 | ev_io_start (EV_A_ &w->io); |
|
|
2202 | |
|
|
2203 | ev_start (EV_A_ (W)w, 1); |
|
|
2204 | } |
|
|
2205 | |
|
|
2206 | void |
|
|
2207 | ev_embed_stop (EV_P_ ev_embed *w) |
|
|
2208 | { |
|
|
2209 | clear_pending (EV_A_ (W)w); |
|
|
2210 | if (expect_false (!ev_is_active (w))) |
|
|
2211 | return; |
|
|
2212 | |
|
|
2213 | ev_io_stop (EV_A_ &w->io); |
|
|
2214 | |
|
|
2215 | ev_stop (EV_A_ (W)w); |
|
|
2216 | } |
|
|
2217 | #endif |
|
|
2218 | |
|
|
2219 | #if EV_FORK_ENABLE |
|
|
2220 | void |
|
|
2221 | ev_fork_start (EV_P_ ev_fork *w) |
|
|
2222 | { |
|
|
2223 | if (expect_false (ev_is_active (w))) |
|
|
2224 | return; |
|
|
2225 | |
|
|
2226 | ev_start (EV_A_ (W)w, ++forkcnt); |
|
|
2227 | array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); |
|
|
2228 | forks [forkcnt - 1] = w; |
|
|
2229 | } |
|
|
2230 | |
|
|
2231 | void |
|
|
2232 | ev_fork_stop (EV_P_ ev_fork *w) |
|
|
2233 | { |
|
|
2234 | clear_pending (EV_A_ (W)w); |
|
|
2235 | if (expect_false (!ev_is_active (w))) |
|
|
2236 | return; |
|
|
2237 | |
|
|
2238 | { |
|
|
2239 | int active = ((W)w)->active; |
|
|
2240 | forks [active - 1] = forks [--forkcnt]; |
|
|
2241 | ((W)forks [active - 1])->active = active; |
|
|
2242 | } |
|
|
2243 | |
|
|
2244 | ev_stop (EV_A_ (W)w); |
|
|
2245 | } |
|
|
2246 | #endif |
|
|
2247 | |
684 | /*****************************************************************************/ |
2248 | /*****************************************************************************/ |
685 | #if 1 |
2249 | |
|
|
2250 | struct ev_once |
|
|
2251 | { |
|
|
2252 | ev_io io; |
|
|
2253 | ev_timer to; |
|
|
2254 | void (*cb)(int revents, void *arg); |
|
|
2255 | void *arg; |
|
|
2256 | }; |
686 | |
2257 | |
687 | static void |
2258 | static void |
688 | sin_cb (struct ev_io *w, int revents) |
2259 | once_cb (EV_P_ struct ev_once *once, int revents) |
689 | { |
2260 | { |
690 | fprintf (stderr, "sin %d, revents %d\n", w->fd, revents); |
2261 | void (*cb)(int revents, void *arg) = once->cb; |
|
|
2262 | void *arg = once->arg; |
|
|
2263 | |
|
|
2264 | ev_io_stop (EV_A_ &once->io); |
|
|
2265 | ev_timer_stop (EV_A_ &once->to); |
|
|
2266 | ev_free (once); |
|
|
2267 | |
|
|
2268 | cb (revents, arg); |
691 | } |
2269 | } |
692 | |
2270 | |
693 | static void |
2271 | static void |
694 | ocb (struct ev_timer *w, int revents) |
2272 | once_cb_io (EV_P_ ev_io *w, int revents) |
695 | { |
2273 | { |
696 | //fprintf (stderr, "timer %f,%f (%x) (%f) d%p\n", w->at, w->repeat, revents, w->at - ev_time (), w->data); |
2274 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, io)), revents); |
697 | evtimer_stop (w); |
|
|
698 | evtimer_start (w); |
|
|
699 | } |
2275 | } |
700 | |
2276 | |
701 | static void |
2277 | static void |
702 | scb (struct ev_signal *w, int revents) |
2278 | once_cb_to (EV_P_ ev_timer *w, int revents) |
703 | { |
2279 | { |
704 | fprintf (stderr, "signal %x,%d\n", revents, w->signum); |
2280 | once_cb (EV_A_ (struct ev_once *)(((char *)w) - offsetof (struct ev_once, to)), revents); |
705 | } |
2281 | } |
706 | |
2282 | |
707 | int main (void) |
2283 | void |
|
|
2284 | ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) |
708 | { |
2285 | { |
709 | struct ev_io sin; |
2286 | struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); |
710 | |
2287 | |
711 | ev_init (0); |
2288 | if (expect_false (!once)) |
712 | |
|
|
713 | evw_init (&sin, sin_cb, 55); |
|
|
714 | evio_set (&sin, 0, EV_READ); |
|
|
715 | evio_start (&sin); |
|
|
716 | |
|
|
717 | struct ev_timer t[10000]; |
|
|
718 | |
|
|
719 | #if 1 |
|
|
720 | int i; |
|
|
721 | for (i = 0; i < 10000; ++i) |
|
|
722 | { |
|
|
723 | struct ev_timer *w = t + i; |
|
|
724 | evw_init (w, ocb, i); |
|
|
725 | evtimer_set_abs (w, drand48 (), 0.99775533); |
|
|
726 | evtimer_start (w); |
|
|
727 | if (drand48 () < 0.5) |
|
|
728 | evtimer_stop (w); |
|
|
729 | } |
2289 | { |
730 | #endif |
2290 | cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMEOUT, arg); |
731 | |
|
|
732 | struct ev_timer t1; |
|
|
733 | evw_init (&t1, ocb, 0); |
|
|
734 | evtimer_set_abs (&t1, 5, 10); |
|
|
735 | evtimer_start (&t1); |
|
|
736 | |
|
|
737 | struct ev_signal sig; |
|
|
738 | evw_init (&sig, scb, 65535); |
|
|
739 | evsignal_set (&sig, SIGQUIT); |
|
|
740 | evsignal_start (&sig); |
|
|
741 | |
|
|
742 | ev_loop (0); |
|
|
743 | |
|
|
744 | return 0; |
2291 | return; |
745 | } |
2292 | } |
746 | |
2293 | |
747 | #endif |
2294 | once->cb = cb; |
|
|
2295 | once->arg = arg; |
748 | |
2296 | |
|
|
2297 | ev_init (&once->io, once_cb_io); |
|
|
2298 | if (fd >= 0) |
|
|
2299 | { |
|
|
2300 | ev_io_set (&once->io, fd, events); |
|
|
2301 | ev_io_start (EV_A_ &once->io); |
|
|
2302 | } |
749 | |
2303 | |
|
|
2304 | ev_init (&once->to, once_cb_to); |
|
|
2305 | if (timeout >= 0.) |
|
|
2306 | { |
|
|
2307 | ev_timer_set (&once->to, timeout, 0.); |
|
|
2308 | ev_timer_start (EV_A_ &once->to); |
|
|
2309 | } |
|
|
2310 | } |
750 | |
2311 | |
|
|
2312 | #ifdef __cplusplus |
|
|
2313 | } |
|
|
2314 | #endif |
751 | |
2315 | |